Rhoa Mount bugging Weapon Sets

Deadeye build -
weapon set 2 set to Lightning Rod only.
Works fine most of the time but randomly after mounting Rhoa, using WP2 Lightning Rod skill doesnt change to Wep Set 2 suddenly.

I have to demount Rhoa and remount for it to sort itself out.
Sometimes you dont realize until you require it in a fight, but... heat of battle, too late and ya die.

Does it inside maps and also while in hideout.

Update:
Seems to occur most frequently when entering in or out of instances and will bug out until you do the dodge roll of the Rhoa first.
Another mate reports the same issue occuring to him.