https://bugs.winehq.org/show_bug.cgi?id=37543
--- Comment #4 from jfbxehupf@jadamspam.pl --- (In reply to jfbxehupf from comment #3)
Starting with 1.7.42 the problem has become even worse: now there are no visible letters both when writing new sticky and after receiving one from other machine.
Earlier issues also persist.
Invisible letters seem to have been partially fixed with updated 1.7.42 package in Arch Linux.
Nevertheless, when dimensions of window change, letters disappear and right side of sticky is replaced by black rectangles.