How to handle animations with root transform but layer has mask without root transform

Hello guys

I am working on a multiplayer fps project and came across a issue, which I couldnt solve at the moment.

Here is a screenshot for a quick demo of what I am talking about:

My jump and idle crouching animations do not work properly, since they apparently need the root transform selected for the mask to work how I want to. The reason why I even deselected the root transform is, is simply because the character slighty goes up and down, which gives a feedback in the pov I do not like. (My goal is to achieve something like a call of duty black ops 2 movement with some new gen features)

Because of this given feedback, I cannot make a new layer controlled with the player script, because the crouching walking animations shouldnt use the root transform either.

Can anyone help me out? Really appreciate it.

Kind regards