Ran into this issue the other day while playing FiveM. (GTA Modded Multiplayer)
When X-Split is open, the chat is no longer viewable in-game and can only be viewed when tabbed out.
While it’s hard for me to get this on recording here is a GIF of when I am in-game with X-Split open.
The only time the chat appears is when I tab out of the game. You can still technically open and type in the chat while in-game but it won’t appear tell you tab out. When X-Split is fully closed it works fine.
I have reached out to FiveM regarding this and their statement was: “It is reading your chat as an overlay rather than ingame UI”. They say it’s being caused by X-Split and is not something they can fix on their end.
FiveM runs with Source SDK Base 2007 and is fully open source if that helps at all.
Any ideas on how to solve this would be great!