Greetings @demonauthor !
Welcome to the Unreal Engine community! 
I’m so sorry to see that you are having multiple issues with your project. Have you tried any of the UE5 Tutorials? Here is one regarding Control Rig and Animating in Sequencer: Control Rig in Unreal Engine | Unreal Engine 5.0 Documentation
If you are beyond the information offered in the tutorial, I do want you to know that we deeply appreciate you posting your issues here - as other members may be experiencing the same issues you are. Please let us know if the tutorial assisted you or not, and perhaps others with a higher level of expertise can help figure this out. 