Morph Target artifacts in metahuman

Hello people! I have a problem with my animation with Metahuman Animator inside final render and a scene preview. I think mesh is broken somehow but disabling Morph Targets in my Animation Sequence worked but prevoew and render stayed the same. Fixes with materials doesnt seem to work either! Pls help! How do i disable this in my final render to get rid of atrifacts? Also artifacts only appear when chin muscles move down