I've had the attacking issue while
as well with Wyll and my main (rouge woodelf).
Both times that it happened was with a ranged attack, Eldritch blast with Wyll and longbow attack with my main.
Animation and sounds happen but no attack is actually made.
When this happens, I can attempt to make multiple attacks on the same turn which shouldn't happen (no buffs for multiple actions were used).
The character is stuck in a non attacking state, I can only end the characters turn and try to use melee attacks, which sucks for Wyll because his hit rating is terrible.