Animations (No SL) not working properly and how to enable controller + keyboard?

[Balmung889]

I ask the second question first, which is the simplest.
1) How can I enable the keyboard if I play with the controller? When I was playing Skyrim LE with the controller it also made me use the keyboard.
Skyrim SE on the other hand disables my keyboard controls when I insert the controller.
How do I use being able to use both at the same time?

 

2) The mod should be PCEA2 but I'm not 100% sure. I shouldn't have any other mods that affect combat poses but as I said I'm not 100% sure. In case how can I post the mod list?
Moving on to the problem:
Some combat animations (third person) do not work properly WHEN THE CHARACTER IS ON THE MOVE.
- When I try to use the shield it doesn't work. The character does not raise the shield. I don't remember if the same happens with weapon parades.
- When I cast spells, my character does not extend his hand (or hands) forward. Apart from the animation, unlike the shield parry, the spells work correctly.
I remind you that this only happens when I am on the move. While stationary the animations work well.

Can you help me?

 

EDIT I'm the biggest idiot in the world!?

The real cause for the animation issue is that I had not selected the SKELETON arm fix patch on FNIS for the "XP32 Maximum Skeleton Extended - XPMSE" mod.
PCEA2 had nothing to do with it! ?