We're having issues with our league files. We're getting errors where we can't save and other errors where we can't open them. The files seem to run pretty slow relative to a brand new league as well.

We stream every game in the 2D engine and make lots of player changes every week. Is it possible this is causing our issues?

The longer you go the more players end up in the player universe or HOF. Also, towards the end of the season the game slows down due to the amount of games and stats it's processing. When you flip the season back to the beginning normally it speeds back up.