I use wurst client in Single and MultiPlayer mostly for its utility functions that arent available as standalone mods, which is why I am running it with many other mods concurrently. I am getting a crash with the ModMenu mod installed, which simply adds a menu for me to manage installed mods within the game.
Crash Report : https://mclo.gs/kPkkFuk
Edit: Forgot to mention that the crash happens when pressing escape, or entering the escape menu by any other means (Alt-Tabbing). I have seen a couple bug reports already but nothing about its incompatibility with mod menu.