The previous bug with the LL class gem was partially fixed. You can now attack when the transform occurs. However, after the transform you revert back to your previous form and the swing timer is not reset. Depending where the swing timer is you may have to wait up to a second or so before you can use the "1" attack (Crescent Combo). When the transform effect fades the swing timer should reset to zero and allow you to use Crescent Combo immediately.
I'm not certain if this is unique to the class gem or if it happens without the gem as well.
I'm not certain if this is unique to the class gem or if it happens without the gem as well.