Hello!
When using Decompose, there is a bug that can trigger causing the Necromancer to be immobilized on it’s position and keeps using Decompose. When that bug occurs, the Necromancer cannot move around anymore, a dodge must be used to be able to move again, most of the Necromancer’s skills cannot be used either when that bug happens.
It may be caused by using SHIFT key to make the Necromancer hold ground and then by using the Decompose basic skill on enemies around.
My apologies I cannot provide an exact procedure to replicate the bug at 100%.
But playing a lot with only Decompose will very highly trigger it within a few hours of gameplay.
Thanks for fixing it.
NB; Please not that bug is there since Beta, and still occurs on all Eternal, Hardcore and Seasonal Realms.