Okay. This is very strange. I’m looking but t just does not happen on my dev & test boxes (or anyone else’s or there would be a lot of posts about the issue here). But you are seeing what you are seeing, so let’s go back to the basics and get a bit more info.
1. What version of WordPress are you running? (Install 6.0 if that’s not installed.)
2. What version of PHP are you running? (Install 7.4 if that’s not installed.)
3. What theme are you running? Try changing it to a ‘standard’ WordPress theme (Twenty Twenty One, say). Your site will probably look like crap, but the admin should work fine. Do you still see the problem?
4. Does this happen for all leagues and seasons, or are there certain ‘problem’ leagues and seasons?
5. There may be a conflict with another plugin. SO deactivate ALL plugins besides League Manager, do you still see this problem? If not, activate the plugins one at a time until you see the problem again. Which one causes the conflict.
6. Delete League Manager and League Manager Add-ons. Reinstall the current version of League Manager (only). (You won’t lose your data.) Do you still see the problem?
7. Having done #5, create a new league and season, and add some games. Do you still see the problem when you Update those games?
8. BTW, did you create the ‘problem’ games with Manage Games or Add Games? It certainly should not matter, but humor me. 🙂
Let’s hope we find it after all that.
-Mark