After upgrading to 5.9.1_18, I'm having partial success in adding a Matter 2 channel switch module. The process seems to get rather far along before failing with these errors in the Matter log:
[2025-03-25 01:59:46.758] [E] [chip] [CTL] Failed to perform commissioning step 29
[2025-03-25 01:59:47.157] [E] [iox] Cannot get Matter BLE Rx Data at offset 2849, offset is greater than length available (24)
[2025-03-25 01:59:47.457] [E] [iox] Cannot get Matter BLE Rx Data at offset 2849, offset is greater than length available (24)
[2025-03-25 01:59:48.191] [E] [iox] Cannot get Matter BLE Rx Data at offset 2849, offset is greater than length available (35)
I've attached the full log file and a photo of the device. Clearly plenty of progress has been made on getting Matter to work!
202503250200-zmat