Bow charging glitch

Greetings,
i'd like to report a cosmetic bug with a bow in off-hand. It doesn't do the animation (picture 1 - 2017-06-11_16.54.39) of charging the bow. It only applies for an off-hand it's perfectly fine with main hand (picture 2 - 2017-06-11_16.55.33). I'd like to see this fixed in an upcoming version.

With hope that you're having a good day,
-the_R3dst0n3