I'm in AZ, in my opinion, it's never cold...
the room temp is in the 70s. (the printer before heating, reads the bed temp at 20-23)
According to the print manager, the bet is staying in the 90-100 range
this last couple prints, the raft held until i was about .5cm tall, then it started losing grip...
at this point, i can see the imprint of the raft on the kapton tape on the bed (like the back and forth squiggle)
I've swabbed the printer with acetone, gave it a good 15 minutes to make sure the acetone's dried off, and now I'm just waiting for it to reheat.
If this doesn't work, I'll try the "shell the sides with cardboard to keep the heat" idea...