I running HA on the Odroid Blue Hardware. I am getting a problem that after a while the Supervisor will tell me that my version is 3.3 while I have upgraded so far 6 times to 2021.3.4 Today it showed me that there was an unknown error, and this is the log I got.
21-03-15 08:26:23 INFO (SyncWorker_4) [supervisor.snapshots.snapshot] Snapshot folder homeassistant done
21-03-15 08:26:27 INFO (MainThread) [supervisor.snapshots] Creating partial-snapshot with slug b39e18a6 completed
21-03-15 08:26:27 INFO (MainThread) [supervisor.homeassistant.core] Updating Home Assistant to version 2021.3.4
21-03-15 08:26:27 INFO (SyncWorker_9) [supervisor.docker.interface] Updating image homeassistant/odroid-n2-homeassistant:2021.3.3 to homeassistant/odroid-n2-homeassistant:2021.3.4
21-03-15 08:26:27 INFO (SyncWorker_9) [supervisor.docker.interface] Downloading docker image homeassistant/odroid-n2-homeassistant with tag 2021.3.4.
21-03-15 08:27:18 INFO (SyncWorker_9) [supervisor.docker.interface] Stopping homeassistant application
21-03-15 08:27:18 INFO (MainThread) [supervisor.api.proxy] Home Assistant WebSocket API error: Received message 8:1000 is not str
21-03-15 08:27:18 INFO (MainThread) [supervisor.api.proxy] Home Assistant WebSocket API error: Received message 8:1000 is not str
21-03-15 08:27:18 INFO (MainThread) [supervisor.api.proxy] Home Assistant WebSocket API connection is closed
21-03-15 08:27:18 INFO (MainThread) [supervisor.api.proxy] Home Assistant WebSocket API connection is closed
21-03-15 08:27:28 INFO (MainThread) [supervisor.updater] Fetching update data from https://version.home-assistant.io/stable.json
21-03-15 08:27:46 INFO (SyncWorker_9) [supervisor.docker.interface] Cleaning homeassistant application
21-03-15 08:27:46 INFO (MainThread) [supervisor.homeassistant] Update pulse/client.config: /data/tmp/homeassistant_pulse
21-03-15 08:27:46 INFO (SyncWorker_5) [supervisor.docker.homeassistant] Starting Home Assistant homeassistant/odroid-n2-homeassistant with version 2021.3.4
21-03-15 08:27:46 INFO (MainThread) [supervisor.homeassistant.core] Wait until Home Assistant is ready
But once it reboot it showed 2021.3.4 again, so its a matter of time before I have to upgrade again