Character gets "frozen". No move or combat action possible

FACTS:

I’m playing an Amazon who frequently (maybe once every hour or two) get’s into a state in which movement is not possible anymore, neither attack actions. I can open town portals and other players see them (so communication with the server still works). I can drop items but cannot pick them up again. I further get damage from monsters, so another proof, that it’s not linked to my internet connection.

GUESSES:
I am playing together with a Sorceress and a Necromancer Character and neither of them are affected by this bug. My guess is that it is somehow linked to the Amazon Passiv-Skills which allow avoiding attacks. I have the feeling that this bug appears when I suffer from a lot of ranged attacks, e.g. Hydras in the Throne of Destruction, 3rd wave.

When I’m affected by the bug, the game continues for the others, but I have to leave the game and rejoin it. Then everything works fine again until I get stuck again, maybe an hour later.

Same issue for my javazon, but it most recently just happened when I was fighting against Hephaesto, and only Hephaesto, all other monsters were dead. There were no missilies.