Drawing Elements turn black

Hi. TBS v3 works fine except when I try to use a texture fill from the palette. My drawing elements turn black! When I export, the colors are fine in the movie but it’s a hassle to work with them like that on the Exposure Sheet. They won’t return to normal until I restart the program.

Is it a hardware problem? Or maybe I need to change some settings? Thanks in advance.

if you suppose it to be a hardware problem, it would be not illogical to post some system information (platform/hardware specs).

i dunno if it could apply, but maybe the change of the renderer would help (edit > preferences > display tab > renderer section - on a pc change from direct3d to opengl, then restart of the app).
cheers,
rob