If it's just epoxy then it should have no real affect on it. If however, you use somekind of metal filled epoxy then it could conceiveably cause problems even though it may not be electrically conductive when measure with a multimeter. Anyway, these silver epoxies and thermal epoxies are sometimes metal filled. I wouldn't use one of them for this. Also, some epoxies, like JB Weld, are metal filled. It should tell you somewhere on the package. Also, as a general rule the ones that look transparent and not opaque are not metal filled. So, if you do try to glue it back on try to use one like that.