I put my MSIIs away for now but I will keep monitoring to see if anyone figures anything out.
I do have a DOME Z-Wave for simply lighting a room when I walk it. It works well. On occasion I fool with it and have a heck of a time figuring out how to make it work again. I do not believe the DOME is sold anymore as Aerotec has other models out there now.
Today I tried a $20 MS from ThirdReality (from Amazon) "THIRDREALITY Zigbee Motion Sensor, Zigbee Hub Required, Pet Friendly, Works with Home Assistant, SmartThings, Aeotec, Hubitat or Echo Devices with Built-in Zigbee hub" and got it working. I am not familiar with Zigbee and EISY kept putting nodes in the tree until I deleted most then somehow got one working. I did a reboot along the way.
This sensor has a built in delay of about 35 seconds and STATUS stays ON during that period. I do not know of a way to shorten the ON time, probably some Zigbee parameter I cannot get to. So, I can't short cycle anything with a timer check for the ON state (At least I do not know how) so my timer is set to recheck status after 40 seconds.
But this MS works to a large extent and it is only $20. It has many other features now available via EISY 5.6.4.
Sure would be nice to have a bunch of working $20 MSs to play with...