Confirmed and fixed. '#c' is v83 markup, not text - it should never reach the screen.

Our sanitiser unwraps the paired form '#c...#', but the Gun Booster string simply never closes it: it ends 'Required Skill : #cLevel 5 or above on Gun Mastery' with no terminator, so the pattern did not match and the marker survived. Unterminated markers are now stripped as well, narrowly enough that the colour and weight codes still reach the renderer intact.

(On the dev branch - it will be in the next published build.)