Braeden
I’ve run into this issue before on multiple occasions. I’m on a mac and this worked for me:
Select all the layers in your timeline (command-a), then hit the keyboard ‘u’ key which shows all your keyframes – or in the Animation pull down menu – select ‘Reveal Properties with Keyframes’.
Not sure this is necessary, but I hit the ‘u’ key again to hide my keyframes and the timeline layers popped back to normal.
Hope this helps.
Ben