Silent Knight Hochiki Modules changing address

Anyone ever see a device change address prior to it going bad?

We had 3 devices going in/out of trouble at almost the same time for many days in a row. I pulled the monitoring report and found that around that time an extra address trouble also came in. The extra address wasn’t the same every time.
Then a module finally quit transmitting and it was replaced a few days ago.

Hochiki modules can certainly do that when they are going bad, due to the fact the addressing is programmed in rather than hard coded on the module, so it’s software dependent. If the software is going bad, then it could be reporting the wrong address for sure.