there is the 'Unicode Character 'MICRO SIGN' (U+00B5)' and the 'GREEK SMALL LETTER MU' (U+03BC)' both look the same from user side. In a numerical question (as Units) user can enter any of them. For some user is the answer correct for other not. I tried to give both Mu to the answers possibilities, i get 'Error writing to database'. Maybe because for DB both of are utf08 Mu
Any idea how to solve the Issue?