Zigbee2MQTT - Error Messages

Hello,
i my log i see this errors:

<small>2025-02-21 13:23:58</small>`zh:ezsp:ezsp: Frame changeSourceRouteHandler parsing error: RangeError [ERR_BUFFER_OUT_OF_BOUNDS]: Attempt to access memory outside buffer bounds`

<small>2025-02-21 13:23:58</small>`zh:ezsp:ezsp: Unparsed frame 0xc4. Skipped`

<small>2025-02-21 13:23:58</small>`zh:ezsp:ezsp: Frame changeSourceRouteHandler parsing error: RangeError [ERR_BUFFER_OUT_OF_BOUNDS]: Attempt to access memory outside buffer bounds`

<small>2025-02-21 13:23:58</small>`zh:ezsp:ezsp: Unparsed frame 0xc4. Skipped`

<small>2025-02-21 13:23:58</small>`zh:ezsp:ezsp: Frame changeSourceRouteHandler parsing error: RangeError [ERR_BUFFER_OUT_OF_BOUNDS]: Attempt to access memory outside buffer bounds`

<small>2025-02-21 13:23:58</small>`zh:ezsp:ezsp: Unparsed frame 0xc4. Skipped`

<small>2025-02-21 13:25:56</small>`zh:ezsp:ezsp: Frame changeSourceRouteHandler parsing error: RangeError [ERR_BUFFER_OUT_OF_BOUNDS]: Attempt to access memory outside buffer bounds`

<small>2025-02-21 13:25:56</small>`zh:ezsp:ezsp: Unparsed frame 0xc4. Skipped`

what is this?

my Dongle:

Sonoff ZBDongle-E, ZigBee 3.0 Gateway

What is your Z2M configuration?
IIRC, if you currently use using the ezsp adapter, moving to adapter: ember should fix this.

I’m having the same problem, with this error showing up often, especially when trying to communicate with devices in order to update their firmwares and things like that.

I’ve tried changing

adapter: ezsp

to

adapter: ember

in the zigbee2MQTT configuration, but then the add-on won’t even start.

I have a Sonoff ZBDongle-E with original firmware.

Any help appreciated, thanks!

Flash it with the latest firmware

Thanks, which firmware should I flash? NCP?

Indeed, NCP

Thanks, I’ll do it ASAP.
Will I have to re-register the ZigBee devices after flashing?