I'm playing on 1.16 with the Mod Menu mod, which adds an extra button to the pause menu. It seems this it messes with the button order and this mod disables the wrong one, because when I'm playing on a server with it I can't access either my options nor the LAN menu.

I can't reproduce this... Could you provide a screenshot and a list of the mods you're using?

This issue is getting stale... Do you still have this problem?

Sorry, I ended up just disabling the mod and forgot about it...

Here's a screenshot in a single player world:

And on a server:

It's really finnicky to reproduce, I've been adding and removing mods for a while but I can't figure out where exactly the problem is. I got it down to these 9 mods, but if I remove any of them the button becomes pressable...

• Fabric API 0.37.1
• Mod Menu 1.14.12
• OptiFabric 1.11.18 (plus an Optifine jar)
• Carpet 1.4.44
• Offline Skins v1
• Appleskin 2.0.0
• Better Third Person 1.5.0
• Shulker Box Tooltip 2.3.4
• Custom LAN v2.0.0

Very weird. After my experimentation I actually don't think this mod's causing the issue - maybe updating the others will help...

Huh, even with these exact mods, I still can't reproduce this...

(Minecraft 1.16.5 with Fabric Loader 0.11.7.)

I made a new Minecraft 1.16.5 instance with Fabric 0.11.7, and after copying over my mods I still get the issue...
I noticed you got the Forge version of Appleskin - try redownloading that. I'll download new versions of the other mods though, something may have been fixed

Welp, I fixed it - it ended up being Mod Menu's fault like I thought at first.
I just updated it to the lastest version for 1.16.5 and the issue disappeared. I looked around and found something that's probably related: TerraformersMC/ModMenu#254

Thanks for going through the effort of getting those mods, but I posted this issue on the wrong repo 😅
Guess it serves as a lesson to always update mods...