Wyvern and model/texture issues

I play Druid Wyvern

I dont know if it's the case with the Bear or the Wolf but as soon as i am transformed i really often get stuck/blocked in texture

Obvioulsy the models are way biggers than the usual characters body and unfortunately it can be a real pain moving properly

Worst case is when i use the DEVOUR skill, the character jump on an available body to feed on it

I can't count the times i endedup completely stuck, unable to move and sometimes even attack, coz the body i used was to close from a rock/plant/hole/whatever