I've read a lot of threads here about people having the same problem with these, and I'm hoping someone has a fix. I've tried virtually everything I can find that others have attempted (giving it 24 hours to settle, decrease the sensitivity setting, press configure after saving the option settings, etc). My sensor came with firmware v2.09, which I have now upgraded to the most recent on the Aeotec site, v2.21. Still no change. I'm also running the most current Hubitat firmware, 2.2.6.140, as I had also read there was a hotfix some time ago that resolved this. Since the sensor always believes there is motion, of course the lights it controls never go out. I've gone back to my GE/Jasco portable sensor in the interim. I've never had a problem with it, but I certainly prefer the mounting option (recessor) for the Aeotec.
Any help is always appreciated.