Issue loading Multiplayer scene from singleplayer main menu

I’m working on a VR (Open XR Multiplayer template in Unity 6000.0.60f1) app and recently we’ve added a multiplayer scene. It works perfectly on its own, we can log in and everything networked is working just fine (we are using the template log in/ lobby menu), but we’ve encountered issues while trying to load the scene from a previously created singleplayer main menu (it has no Network related components or prefabs aside from the player XR origin). The multiplayer scene is loaded as single, so it should restart but we are unable to create or join a room, even though it was working just fine when built alone. I’ve tried opening the sample scene with my menu and the issue persisted. I don’t know if someone knows a possible solution, or if we’re missing a specific config before entering the multiplayer scene. All network prefabs and behaviours are there and nowhere else.

Hello!

Are there any specific errors displayed when you are trying to create or join a room? That could help find what’s failing, it could be that there is a step that didn’t initialize correctly.