Why I can't see and edit my animation keyframes?

Hi, guys! I’m new to this and I’m having a problem where I can’t change and edit my keyframes on my level sequencer. I already tried “Edit with FK Control Rig” and “Bake to Control Rig”. My character is a Metahuman and the animation used to work fine before.
image

This is how it should appear:

Thanks a lot!