Looks like @kkossev has an early release that fixes the Zigbee issues caused by this new Aqara FP300 firmware version. Great work @kkossev! I will look to merge his changes into this dedicated driver over the next couple of days and will then do some testing. I am currently busy with some other more urgent projects around the house, so it'll be a couple of days before I can really look into this.
For now, please DO NOT update the firmware on your FP300 sensors if you're using this dedicated FP300 driver. I'll let you all know when it is safe to do so.