Custom Key Signature Bug

When creating a custom key signature and applying it to the full score, the key is not transposed to account for different clefs. For example, if I create a custom key signature that just makes all G's sharp on treble clef, this will only work for treble clef and any other clef will have the sharp in the wrong place (On bass clef the B's would be made sharp). The only current workaround would be to create custom keys for every clef, which is incredibly tedious.

Thanks