In toolbars some icons are not correct (f.e. cut, copy and others) shown. When saving a document, nearly all icons are replaced by black squares
Have you tested the options for the graphics card in Menu/Tools/LibreOffice/View?
Disabling the OpenGL
Attach printscreen of icons which are not correct.
This problem might already got fixed ( bug 97816 ) in v18.104.22.168+, so you might wanna try that one.
Info from reporter - opengl problem, correcting status.
Icons affected are random. You can re-open a document and a different set of icons may be grayed out. There is no pattern that I can figure out. If you hover over the icon the test of it will appear correctly. When I check for updates I am told I am up to date. This only started when I upgraded to 22.214.171.124 this past week.
I have the same issue, version 126.96.36.199. Random toolbar icons become corrupted and have only grey streaks. Disabling OpenGL for rendering in the Options seems to fix it.
*** This bug has been marked as a duplicate of bug 97816 ***