Please help us to fix it by copying the following text and pasting it into a new post on https://forum.glyphsapp.com. Thanks!
text:
بئ
حىى' (\__NSCFString), length: 38, string: '{
}' (NSConcreteAttributedString), length: 2, range: {33, 6}
NSRangeException
NSMutableRLEArray replaceObjectsInRange:withObject:length:: Out of bounds
(
"3 Foundation 0x0000000193539e20 -\[NSConcreteMutableAttributedString replaceCharactersInRange:withAttributedString:\] + 212",
"4 Glyphs 3 0x0000000100d6cd14 Glyphs 3 + 298260",
"5 TextTool 0x000000010ef2725c TextTool + 45660",
"6 AppKit 0x00000001962c804c -\[NSApplication(NSResponder) sendAction:to:from:\] + 560",
"7 Glyphs 3 0x0000000100da2d04 Glyphs 3 + 519428",
"8 AppKit 0x0000000196017e9c -\[NSMenuItem \_corePerformAction:\] + 540",
"9 AppKit 0x00000001962f6dc4 \_NSMenuPerformActionWithHighlighting + 160"
)