… or maybe the shortcut has just changed 
Moving a node without moving the anchors in increments of 10 with alt+shift+arrow is a function I’ve used quite a lot, but in Glyphs 3 it switches to the next Glyph instead of moving the node.
How can I program it back to work like it did it Glyphs 2?
It works fine for me, has never failed.
Strange. Maybe I’ve messed up my shortcuts somehow. Will try to reinstall the software.
Is there a way to restore the default shortcuts without reinstalling?
EDIT: Figured it out. Had somehow changed my shortcut for prev/next glyph to alt+shift. Removing those shortcuts fixed the problem.