Features Bug (latest cutting edge version)
When coding features and making manual adjustments to the code it becomes extremely slow/laggy. Because of this I wrote all of my dligs (about 2,100 glyph substitutions) in a dedicated text editor and copied and pasted it in. Everything transferred and the exported font worked perfectly. Saving, quitting, and reopening however, and 80% of the code is deleted and some is garbled. I repeated the process and the problem was a duplicate. So perhaps Glyphs cannot handle that much code? Or it didn’t like the tab spaces I used?
Suggested improvement: being able to Undo/Redo edits made to text in the Features panel. Hitting CMD+Z while editing the Features apparently deleted some letters I had just added and designed (though I haven’t been able to duplicate this “issue”). So perhaps just adding Edit:Undo/Redo capability to the text editing would help prevent similar mistakes.