I am dumb and need help

I created a character and made a pose library. Now I am animating and find that once I set keys I cannot edit the armature in pose mode anymore The armature moves, but the mesh does not!

This has to be something simple…

…does someone smarter than me have a few words of advice that will save me a lot of time?

Thank you thank you ahead of time.

Blender Fan

Recap you apply specified pose with all posed bones selected and I key loc rotation and whatever. then in 3d view the bones are locked you cannot repose but before you key framed you could?? You got me constrained man Im all locked up.
I cant figure it with out seeing a blend file.

I really appreciate the response but you know I think it is just one of those things that happens sometimes. I went back to a previous version of my file (this is why I save a LOT of versions) and redid a few keys and it was fine. I don’t know what happened. Somehow, I could adjust the armature but it would not adjust the mesh, despite my trying a bunch of things.

I am thinking it had something to do with the pose library - I don’t know.

Thanks again! Happy Blending!

I do that to I do not save over files. I save all blend files and delete only when I am sure I wont need them