Wild guess here but...use only one After Effects project for all your comps. Don't use numbers in your comps, make them all unique names.
It is all from 1 after effects project, just multiple compositions, names are like this:
003-Ball to Corner
002-Guard to Guard
etc, so they have numbers, but they have unique names attached as well.
Are you Dynamically Linking your Ae comps to your Pr Seq?
If so, render your lower thirds out of AE and replace the linked comps in Pr. That doesn't solve your problem, but it will get your project finished.
Fixing it may require a cache dump or deleting your previews in Pr.
so they have numbers
Yeah, keep those out, though. Use just names.