Ya, so I've run two indy hs leagues, creating sufficient FAs that have exited the hs system but are still in their 20s.
I set up an indy college league and set up an inaugural draft and... same thing.
The FAs remain in the system but are not accessible by any other league AIs. Yet, as I mentioned, it seems human managers can access any player ever created.
Since the data remain available and in play in the db how tough can it be to simply make all players available to the AI?
As it is, the only hs players that have actually gone through my hs "feeders" which can be seen by the college draft AI are 18 year olds. Those older the AI can't see.
* A footnote: I noticed the game developers have added a fake high school "career" for some generated players. Is this new? The effect is the generated player rates as having "high school stats", but.. you know, not really.... Unless the code is so far gone it is just impossible to change at this point, that addition of generated stats to make it seem sim'ed is a mis-step in my opinion.