I have the same problems, with two modules now. They worked initially, i.e. changes caused by motion were visible in Home Assistant as well as in the logs of the ESP. After a while (~30mins) both modules stopped working (maybe after I tried to enable “Custom info output switch” or some other configuartion via Home Assistant).
I had conneded the second module with PackageMake tool via UART2USB, before I connected it to the ESP. At this point in time, I was able to send and receive data and also to update FW successfully via the tool. After the modules fail, they do not react to any command by PackageMake tool via UART2USB. When disconnecting the modules from power and reconnect to power they both send:
收: 53 59 80 01 00 01 00 2E 54 43
收: 53 59 80 02 00 01 00 2F 54 43
收: 53 59 80 0B 00 01 00 38 54 43
But they do not react to any command (initialise, reset, FW update) anymore.