Hi all!
I have been working on a HA wallpanel-style dashboard to be displayed on a tablet with the screen always on. I’ve noticed that the tablet will randomly fail to display the dashboard and instead show an error box across the whole screen, but no actual error message is displayed:
Setup details:
- Dashboard displayed via Home Assistant Companion app
- Tablet is a Lenovo K10 running Android 12
- Dashboard includes
card-mod,button-card,lovelace-layout-card, and some other components off HACS
I grabbed the device logs via app settings → Troubleshooting → Logs but am not sure what to look for.
I haven’t noticed this issue with this dashboard on any other devices (companion app on Android 16 and web browser from a couple other machines) but to be fair I’m not leaving those devices displaying the dashboard all the time.
I’m pretty new to building HA dashboards (and working with HA in general) so any guidance on what could be going wrong or how I can approach debugging the issue further would be much appreciated!! TIA 
Device log and dashboard YAML below:
Device Log
--------- beginning of main
02-12 12:40:22.852 2939 2939 I mpanion.androi: Using CollectorTypeCC GC.
02-12 12:40:23.162 2939 2939 W mpanion.androi: Failed to find entry 'classes.dex': Entry not found
02-12 12:40:23.163 2939 2939 W mpanion.androi: Failed to find entry 'classes.dex': Entry not found
02-12 12:40:23.200 2939 2939 I FirebaseApp: Device unlocked: initializing all Firebase APIs for app [DEFAULT]
02-12 12:40:23.203 2939 2939 I FirebaseInitProvider: FirebaseApp initialization successful
02-12 12:40:23.237 2939 2939 I WebViewFactory: Loading com.google.android.webview version 144.0.7559.132 (code 755913201)
02-12 12:40:23.297 2939 2939 I cr_WVCFactoryProvider: version=144.0.7559.132 (755913201) minSdkVersion=29 multiprocess=true packageId=127 splits=config.arm64_v8a,config.hdpi
02-12 12:40:23.315 2939 2981 E chromium: [0212/124023.314635:ERROR:android_webview/browser/variations/variations_seed_loader.cc:39] Seed missing signature.
02-12 12:40:23.327 2939 2939 I cr_LibraryLoader: Successfully loaded native library
02-12 12:40:23.329 2939 2939 I cr_CachingUmaRecorder: Flushed 16 samples from 16 histograms, 0 samples were dropped.
02-12 12:40:23.339 2939 2939 I HomeAssistantApplication: Running 2026.2.1-full on SDK 31
02-12 12:40:23.370 2939 2939 W pool-8-thread-1: type=1400 audit(0.0:6502): avc: denied { read } for name="version" dev="proc" ino=4026532081 scontext=u:r:untrusted_app:s0:c168,c256,c512,c768 tcontext=u:object_r:proc_version:s0 tclass=file permissive=0 app=io.homeassistant.companion.android
02-12 12:40:23.398 2939 2939 I PowerHalWrapper: PowerHalWrapper.getInstance
02-12 12:40:23.443 2939 2939 W ViewConfiguration: gaoliang ViewConfiguration mMinScalingSpan=138
02-12 12:40:23.467 2939 2939 I SurfaceFactory: [static] sSurfaceFactory = com.mediatek.view.impl.SurfaceFactoryImpl@bdabbe3
02-12 12:40:23.469 2939 2939 I MsyncFactory: [static] sMsyncFactory = com.mediatek.view.impl.MsyncFactoryImpl@13fb499
02-12 12:40:23.531 2939 2939 I BufferQueueConsumer: [](id:b7b00000000,api:0,p:-1,c:2939) connect: controlledByApp=false
02-12 12:40:23.533 2939 2939 I BLASTBufferQueue: [ViewRootImpl[LaunchActivity]#0] constructor()
02-12 12:40:23.569 2939 3016 I BufferQueueProducer: [ViewRootImpl[LaunchActivity]#0(BLAST Consumer)0](id:b7b00000000,api:1,p:2939,c:2939) connect: api=1 producerControlledByApp=true
02-12 12:40:23.580 2939 3031 E ion : ioctl c0044901 failed with code -1: Invalid argument
02-12 12:40:23.595 2939 2968 W WM-Processor: Didn't find WorkSpec for id WorkGenerationalId(workSpecId=3d15b4e6-9d24-49ef-9039-7681bd054bdf, generation=0)
02-12 12:40:23.615 2939 2939 I LaunchViewModel: Current network state READY_INTERNAL
02-12 12:40:23.674 2939 2939 I Instrumentation: execStartActivity isCustomized = false,,,packName = io.homeassistant.companion.android,,intent.getAction() = null
02-12 12:40:23.706 2939 3016 E OpenGLRenderer: fbcNotifyFrameComplete error: undefined symbol: fbcNotifyFrameComplete
02-12 12:40:23.707 2939 3016 E OpenGLRenderer: fbcNotifyNoRender error: undefined symbol: fbcNotifyNoRender
02-12 12:40:23.753 2939 2968 I WM-WorkerWrapper: Worker result SUCCESS for Work [ id=3327d7e8-15e6-452f-b5de-0ff9d3394b22, tags={ io.homeassistant.companion.android.websocket.WebsocketManager } ]
02-12 12:40:23.811 2939 2939 I cr_CombinedPProvider: #registerProvider() provider:WV.rk@4583722 isPolicyCacheEnabled:false policyProvidersSize:0
02-12 12:40:23.813 2939 2939 I cr_PolicyProvider: #setManagerAndSource() 0
02-12 12:40:23.819 2939 2939 I cr_DisplayManager: Is Display Topology available: false
02-12 12:40:23.858 2939 2939 I cr_CombinedPProvider: #linkNativeInternal() 1
02-12 12:40:23.860 2939 2939 I cr_AppResProvider: #getApplicationRestrictionsFromUserManager() Bundle[EMPTY_PARCEL]
02-12 12:40:23.860 2939 2939 I cr_PolicyProvider: #notifySettingsAvailable() 0
02-12 12:40:23.860 2939 2939 I cr_CombinedPProvider: #onSettingsAvailable() 0
02-12 12:40:23.860 2939 2939 I cr_CombinedPProvider: #flushPolicies()
02-12 12:40:23.881 2939 3064 W WebSocketCoreImpl: Response for message not in activeMessage id(1) skipping
02-12 12:40:23.919 2939 3078 W libc : Access denied finding property "ro.vendor.api_level"
02-12 12:40:23.934 2939 2939 W chromium: [WARNING:android_webview/browser/network_service/net_helpers.cc:137] HTTP Cache size is: 50593049
02-12 12:40:24.019 2939 2995 I SensorReceiverBase: Sensor updates and sync completed
02-12 12:40:24.050 2939 3094 I CameraManagerGlobal: Connecting to camera service
02-12 12:40:24.089 2939 2939 I BufferQueueConsumer: [](id:b7b00000001,api:0,p:-1,c:2939) connect: controlledByApp=false
02-12 12:40:24.090 2939 2939 I BLASTBufferQueue: [ViewRootImpl[WebViewActivity]#1] constructor()
02-12 12:40:24.092 2939 3016 I BufferQueueProducer: [ViewRootImpl[WebViewActivity]#1(BLAST Consumer)1](id:b7b00000001,api:1,p:2939,c:2939) connect: api=1 producerControlledByApp=true
02-12 12:40:24.310 2939 2976 I WM-WorkerWrapper: Worker result SUCCESS for Work [ id=4f5d165b-cef0-4c5c-afb4-edd266123671, tags={ io.homeassistant.companion.android.common.util.ResyncRegistrationWorker } ]
02-12 12:40:24.329 2939 2939 W cr_SupportWebSettings: setForceDarkBehavior() is a no-op in an app with targetSdkVersion>=T
02-12 12:40:24.329 2939 2939 W cr_WebSettings: setForceDark() is a no-op in an app with targetSdkVersion>=T
02-12 12:40:24.374 2939 3016 I BufferQueueProducer: [ViewRootImpl[LaunchActivity]#0(BLAST Consumer)0](id:b7b00000000,api:1,p:2939,c:2939) disconnect: api 1
02-12 12:40:24.375 2939 3016 E BLASTBufferQueue: BLASTBufferItemConsumer::onDisconnect()
02-12 12:40:24.381 2939 2939 I BLASTBufferQueue: [ViewRootImpl[LaunchActivity]#0] destructor()
02-12 12:40:24.381 2939 2939 I BufferQueueConsumer: [ViewRootImpl[LaunchActivity]#0(BLAST Consumer)0](id:b7b00000000,api:0,p:-1,c:2939) disconnect
02-12 12:40:24.403 2939 2976 I WM-Processor: Moving WorkSpec (76a5ee5c-60e0-471e-9217-80fca7f9aba5) to the foreground
02-12 12:40:24.447 2939 2939 I WM-SystemFgDispatcher: Started foreground service Intent { act=ACTION_START_FOREGROUND cmp=io.homeassistant.companion.android/androidx.work.impl.foreground.SystemForegroundService (has extras) }
02-12 12:40:24.458 2939 2968 I WM-WorkerWrapper: Worker result SUCCESS for Work [ id=d23b4e73-6917-4c61-84b6-b039fcd9ce3e, tags={ io.homeassistant.companion.android.websocket.WebsocketManager } ]
02-12 12:40:24.608 2939 2939 W ServerManagerImpl: Activate with SERVER_ID_ACTIVE is not doing anything
02-12 12:40:24.666 2939 3090 W AudioCapabilities: Unsupported mime audio/x-adpcm-dvi-ima
02-12 12:40:24.666 2939 3090 W AudioCapabilities: Unsupported mime audio/x-adpcm-dvi-ima
02-12 12:40:24.670 2939 2950 I BLASTBufferQueue: releaseBufferCallbackThunk bufferId:12622908882947 framenumber:1 blastBufferQueue is dead
02-12 12:40:24.672 2939 3090 W AudioCapabilities: Unsupported mime audio/x-adpcm-ms
02-12 12:40:24.672 2939 3090 W AudioCapabilities: Unsupported mime audio/x-adpcm-ms
02-12 12:40:24.672 2939 3090 W AudioCapabilities: Unsupported mime audio/alac
02-12 12:40:24.673 2939 3090 W AudioCapabilities: Unsupported mime audio/alac
02-12 12:40:24.673 2939 3090 W AudioCapabilities: Unsupported mime audio/ape
02-12 12:40:24.673 2939 3090 W AudioCapabilities: Unsupported mime audio/ape
02-12 12:40:24.691 2939 3090 W AudioCapabilities: Unsupported mime audio/mpeg-L2
02-12 12:40:24.699 2939 3090 W VideoCapabilities: Unrecognized profile/level 1/32 for video/mp4v-es
02-12 12:40:24.700 2939 3090 W VideoCapabilities: Unrecognized profile/level 1/32 for video/mp4v-es
02-12 12:40:24.701 2939 3090 W VideoCapabilities: Unsupported mime video/x-ms-wmv
02-12 12:40:24.702 2939 3090 W VideoCapabilities: Unsupported mime video/x-ms-wmv
02-12 12:40:25.186 2939 3052 I SensorReceiverBase: Sensor updates and sync completed
02-12 12:40:25.190 2939 2976 I WM-WorkerWrapper: Worker result SUCCESS for Work [ id=76a5ee5c-60e0-471e-9217-80fca7f9aba5, tags={ io.homeassistant.companion.android.sensors.SensorWorker } ]
02-12 12:40:25.196 2939 2939 I WM-SystemFgDispatcher: Stopping foreground service
02-12 12:40:25.436 2939 2939 E WebViewActivity: Cannot set status bar color. Skipping coloring...
02-12 12:40:25.436 2939 2939 E WebViewActivity: Cannot set background color. Skipping coloring...
02-12 12:40:26.149 2939 2995 I WebViewPresenterImpl$parseWebViewColor: Found color -14935012.
02-12 12:40:26.150 2939 2995 I WebViewPresenterImpl$parseWebViewColor: Found color -15658735.
02-12 12:40:26.312 2939 2995 I WebViewPresenterImpl$parseWebViewColor: Found color -14935012.
02-12 12:40:26.314 2939 2969 I WebViewPresenterImpl$parseWebViewColor: Found color -15658735.
02-12 12:40:33.509 2939 2943 I mpanion.androi: Background concurrent copying GC freed 11MB AllocSpace bytes, 83(1940KB) LOS objects, 78% free, 6613KB/30MB, paused 265us,97us total 203.765ms
02-12 12:40:44.153 2939 2997 I SensorReceiverBase: Sensor updates and sync completed
02-12 12:40:51.715 2939 3016 I BufferQueueProducer: [ViewRootImpl[WebViewActivity]#1(BLAST Consumer)1](id:b7b00000001,api:1,p:2939,c:2939) disconnect: api 1
02-12 12:40:51.717 2939 3016 E BLASTBufferQueue: BLASTBufferItemConsumer::onDisconnect()
02-12 12:40:51.725 2939 2939 I BLASTBufferQueue: [ViewRootImpl[WebViewActivity]#1] destructor()
02-12 12:40:51.725 2939 2939 I BufferQueueConsumer: [ViewRootImpl[WebViewActivity]#1(BLAST Consumer)1](id:b7b00000001,api:0,p:-1,c:2939) disconnect
02-12 12:40:53.127 2939 2953 I BLASTBufferQueue: releaseBufferCallbackThunk bufferId:12622908882952 framenumber:83 blastBufferQueue is dead
02-12 12:40:53.133 2939 3016 I GED : ged_boost_gpu_freq, level 100, eOrigin 2, final_idx 2, oppidx_max 2, oppidx_min 0
02-12 12:41:01.714 2939 3016 I GED : ged_boost_gpu_freq, level 100, eOrigin 2, final_idx 2, oppidx_max 2, oppidx_min 0
02-12 12:41:01.717 2939 3016 I GED : ged_boost_gpu_freq, level 100, eOrigin 2, final_idx 2, oppidx_max 2, oppidx_min 0
02-12 12:41:15.875 2939 2939 I BufferQueueConsumer: [](id:b7b00000002,api:0,p:-1,c:2939) connect: controlledByApp=false
02-12 12:41:15.876 2939 2939 I BLASTBufferQueue: [ViewRootImpl[WebViewActivity]#2] constructor()
02-12 12:41:15.877 2939 3016 I BufferQueueProducer: [ViewRootImpl[WebViewActivity]#2(BLAST Consumer)2](id:b7b00000002,api:1,p:2939,c:2939) connect: api=1 producerControlledByApp=true
02-12 12:41:16.053 2939 2976 I WM-Processor: Moving WorkSpec (493669d3-0491-454e-93fe-4026e2ab4c29) to the foreground
02-12 12:41:16.079 2939 2939 I WM-SystemFgDispatcher: Started foreground service Intent { act=ACTION_START_FOREGROUND cmp=io.homeassistant.companion.android/androidx.work.impl.foreground.SystemForegroundService (has extras) }
02-12 12:41:16.155 2939 2976 I WM-WorkerWrapper: Worker result SUCCESS for Work [ id=9f80344c-f863-459c-a9ec-c5957ad36713, tags={ io.homeassistant.companion.android.websocket.WebsocketManager } ]
02-12 12:41:16.722 2939 2997 I SensorReceiverBase: Sensor updates and sync completed
02-12 12:41:16.725 2939 2975 I WM-WorkerWrapper: Worker result SUCCESS for Work [ id=493669d3-0491-454e-93fe-4026e2ab4c29, tags={ io.homeassistant.companion.android.sensors.SensorWorker } ]
02-12 12:41:16.731 2939 2939 I WM-SystemFgDispatcher: Stopping foreground service
02-12 12:41:33.096 2939 2939 I Instrumentation: execStartActivity isCustomized = false,,,packName = io.homeassistant.companion.android,,intent.getAction() = null
02-12 12:41:33.325 2939 2939 I BufferQueueConsumer: [](id:b7b00000003,api:0,p:-1,c:2939) connect: controlledByApp=false
02-12 12:41:33.325 2939 2939 I BLASTBufferQueue: [ViewRootImpl[SettingsActivity]#3] constructor()
02-12 12:41:33.327 2939 3016 I BufferQueueProducer: [ViewRootImpl[SettingsActivity]#3(BLAST Consumer)3](id:b7b00000003,api:1,p:2939,c:2939) connect: api=1 producerControlledByApp=true
02-12 12:41:33.737 2939 3055 I SensorReceiverBase: Sensor updates and sync completed
02-12 12:41:34.035 2939 3016 I BufferQueueProducer: [ViewRootImpl[WebViewActivity]#2(BLAST Consumer)2](id:b7b00000002,api:1,p:2939,c:2939) disconnect: api 1
02-12 12:41:34.037 2939 3016 E BLASTBufferQueue: BLASTBufferItemConsumer::onDisconnect()
02-12 12:41:34.037 2939 3016 I BLASTBufferQueue: [ViewRootImpl[WebViewActivity]#2] destructor()
02-12 12:41:34.037 2939 3016 I BufferQueueConsumer: [ViewRootImpl[WebViewActivity]#2(BLAST Consumer)2](id:b7b00000002,api:0,p:-1,c:2939) disconnect
02-12 12:41:34.070 2939 2953 I BLASTBufferQueue: releaseBufferCallbackThunk bufferId:12622908882958 framenumber:74 blastBufferQueue is dead
02-12 12:41:35.262 2939 3012 I libPerfCtl: fbcNotifySbeRescue ret=-1
02-12 12:41:35.310 2939 3012 I libPerfCtl: fbcNotifySbeRescue ret=-1
02-12 12:41:36.190 2939 2939 E mpanion.androi: Invalid ID 0x00000000.
02-12 12:41:37.574 2939 2939 E mpanion.androi: Invalid ID 0x00000000.
Dashboard YAML: ha-dashboarderror-yaml - Pastebin.com