I am working with a font and scaled it to 2000 UPM, everytime i change the metrics, it acted strange. i manually set it to 45 and press enter. but it rounded to 44. and when i move the drawing 10 point (using SHIFT). it moves 20pt instead. and Cmd+Shift+Left resulted in 100 increment. All doubled.
Glyphs 3.0.4 (3098)
Mac OS 11.6