Fishing in Pools

Hey,

while fishing in Tanaan with a fishing profile to catch some felblight, there occures sometimes an error:

Often the third or fourth cast will not be catched because the toon wants to swap the pole with a weapon during the cast. (Got this from ingame error "You cant do this right now" and ingame weapon switching sound). Even when i fish without a pole this error occures. But without an ingame error. In both cases he casts "Fishing" till the end and starts it new without catching. Its really annoying because of the low drop rates of Felblight.

Any thougts on this?

Regards