Cannot disable Guardian anymore

Some serious issues here on a couple of Quest units (one with v34, the other with v35)

Once I turn Guardian off in the Developer menu (BTW, congrats for messing the UI up in v35...) I can still see the boundaries and as soon as I walk outside passthrough kicks in... a couple of other units (v33) work perfectly, but the updated ones are buggy. Is it just me?

I tried to disable and re-enable developer mode in the app, cleared the location history... it just gets stuck.

Sometimes I cannot even enable Guardian anymore, the button turns blue, but cannot define a new area, but still I cannot disable the existing one... Since I'm testing a free roaming app (10x10 meters with no active boundaries) I NEED this badly.

It's an hit and miss situation: upon reboot sometimes it works just once and then gets stuck again, sometimes it boots like that no matter what.

It might help to know that I'm using AirLink and I need to set the floor from there... maybe AirLink is messing with the Quest OS? Seems a pretty serious bug to me anyway.

EDIT: Under further investigations, it turns out that you MUST reboot the Quest in order to activate/deactivate Guardian boundaries control... not useful at all if you need to activate/deactivate multiple times per session for testing purposes!