With an A1 with 2 AMS-HT units: After drying the filament for a few hours, I started the print (6 hours). After a few hours, it stopped the print because it wanted to dry the filament again (!?), but it couldn’t do this because the filament was still in the tube. I restarted the print and again, after slightly longer than before, it stopped because it wanted to dry the filament again. After that, I turned everything off and back on, and then the print was successful.