In the last month I that the issue that on one of my UMS5 printers the PLA sticks to much to the bed. If i try to remove them I rip apart pieces or the first layers stay stuck on the bed. I use glue for adhesion. I don't have this issue on my other UMS5 or UM2+ printers. I did a leveling test and also manual leveled it as well.
Any ideas on how to solve this or what I can do?