I am using PLA+ purple with a temp range of 205-225. I am using a temp of 219 and a hot bed temp of 50. The print will get in for about 60 minutes and anything after that will not stick. Sometimes I get a clump on the nozzle and that knocks things off.
Ive tried things with more than one starting point, think of legs, and those will only stick 3 legs until the 2nd or third layer.
In all cases so far the only thing I get to stick is the Benchy test print. The Moai, that is another item that I posted in another thread.
I have it grip a folded sheet of paper. I will clean it again. I am also wanting to try blue tape.
It is just frustrating to print for 60 minutes and then watch a "glob" knock the print over.