Still learning my way around the Rep5, I’ve come across two problems: Print adhesion (or lack of) on larger prints, and oozy strings on everything, especially at high resolution.
I print on blue tape in MakerBot PLA, and on a 6×6 square, started getting nasty corner lifting. I solved this by scrubbing the tape’s upper surface lightly with alcohol (with the print surface out of the bed bracket). My next print adhered so well the tape came away with it…which was a pain, but there you are.
At MakerBot support’s suggestion, I also lowered my print temp from 230° to 220°. The stringiness I’d been seeing instantly went from “OMG a spider lives here!” to almost nothing.