TS paints are very hot and not affected by IPA (brake fluid for 2 days does work on them tho, thats how i strip them without killing the plastic). i should clarify for posterity. once you compromise the paint with a long dot3 bath ipa can help clean up residue but on a well painted, dried and sealed up parts, ipa wont do much at all.

the said the flat clear TS is a weird one.. its soft and not very resilient. just sand over it quickly with a sanding pad like 600grit from tamiya and repaint. its what i do, never any issues. the issues come when you lay TS after the acrylic, but only if you do heavy wet coats using gloss clear