Game Mode Options aren’t working

So a while back, [This has been a problem for a while now.]. recently I’ve noticed every time I put on a game type and wanna change a few things. The options won’t show up and it’s just the “save a copy” option. Below that is just “game mode options” but no options are there.
I ignored the bug because I thought it would’ve been fixed or it was something that happens for a few minutes like the freezing problem when a custom game ends or in game. Also I don’t play customs that much. But when I do it does not let me customize my game type at all. [all of game types even the ones made by 343.]

Anyone having this problem too and that reported it? It’s so weird, I dislike it very much.

I’m having the same issue. This post is months old and hasn’t been addressed which worries me. This is extremely frustrating, I literally cannot edit game modes whatsoever. It just says “save a copy” even if it’s a 343 gamemode. I’m incredibly confused and angry as to how this could even be a thing, especially going unnoticed or addressed. It’s completely game breaking. Best of luck, I’ll let you know if I can find anything