Guard against a potential startup crash if user's preferred ruleset has a compatibility issue
Guard against a potential startup crash if user's preferred ruleset has a compatibility issue

Resolves this issue seen at https://github.com/ppy/osu/issues/13722#issuecomment-872088071.

smoogipooo/osu,ppy/osu,UselessToucan/osu,peppy/osu,NeoAdonis/osu,ppy/osu,ppy/osu,peppy/osu,smoogipoo/osu,UselessToucan/osu,NeoAdonis/osu,UselessToucan/osu,smoogipoo/osu,NeoAdonis/osu,smoogipoo/osu,peppy/osu,peppy/osu-new