The latest version 1.4.4 (595) have the same annoying bug as the previous version.
Opened file (not touched!) colours some glyphs ( in my case IJ/Iacute_J.loclNLD ij
a.ss02 y.ss02 j.ss03 s.sups g_j iacute_jacute.sc ij.sc and ½ ⅓ ⅔ ¼ ¾ ⅕ ⅖ ⅗ ⅘ ⅙ ⅚ ⅛ ⅜ ⅝ ⅞ % ‰)
light gray, like they are changed or edited.
IIf I open the file and want to close it, untouchable - “Do you want to save changes” - window appear.
It will show gray glyphs the first time you open an ‘old’ file. But it shouldn’t do it again after you saved it and reopen. If it still does this, please send me the file.