I can't delete certain keyframes?

Hello everyone, first time posting here. I’ve searched the forums but can’t find an answer to this specific problem.

So, I made a rig with rigify and setup a few animations. I tried scaling the keyframes of my walk cycle to shorten it up, then realized that a few keyframes wouldn’t move. I also cannot delete them. Below is a screenshot of the frames in question, both before and after attempting to drag all the frames.

I also cannot deselect them.

Thanks in advance!

Those are simply key frames of bones that aren’t selected. Nothing to worry about, really.