I get the above mentioned error when I use SVG's in my css files, I noticed it because then the rolltemplate is no longer displayed correctly, so the css is not applied although it is loaded according to the source code. All other style elements that come after the svg's are also displayed correctly in the sheet. Is it not possible to use SVG's? That would be a pity because otherwise you can't use nice icons. i wanted to attach pictures, but then i couldn't send the post because of an internal error, so here is just the code: <a href="https://codeberg.org/ButterflyAspect/roll20-character-sheet/src/branch/attribut-fertigkeiten-rework/ButterflyAspect.sass#L521" rel="nofollow">https://codeberg.org/ButterflyAspect/roll20-character-sheet/src/branch/attribut-fertigkeiten-rework/ButterflyAspect.sass#L521</a>