Matter Device OTA upgrade issue

I am using a Matter Device to do the OTA test with iPhone 8 Plus, HomePod mini, and the Home App. however, there is some abnormal behavior.

The problem is that:

1. The Matter device in the pop-up message is still the old firmware version after the OTA upgrade successfully. A few minutes later, the firmware version is updated in the device info but Apple Home still pop-up that a new firmware version is available for the Matter device with the same new version.

1. When I restart the HomePod mini, no more updates are available for my device. is the HomePod cached the firmware version?

2. The firmware version display format is incorrect? I remember the firmware format is in string e.g. 1.6.138. I could confirm this issue happened on HomePod mini V17.4. example:

The old firmware version of the Matter device should be 251689472 in number and 1.5.122.0 in string.

The new firmware version of the Matter device after OTA should be 1.6.138.0 in string and 268470784 in number

(OTA upgrade with new firmware version)

**Please let me know if more information is needed. **

Environment: iPhone 8 Plus, IOS 16.7.5 Apple HomePod Mini V17.5