When I install this mod with jei or other mods, it will repeatedly report GL ERROR, which will cause the size of the log file to become very large.
Just like this.

[19:08:34] [Render thread/ERROR]: ########## GL ERROR ##########
[19:08:34] [Render thread/ERROR]: @ Post render
[19:08:34] [Render thread/ERROR]: 65539: Invalid key -1
[19:08:34] [Render thread/ERROR]: ########## GL ERROR ##########
[19:08:34] [Render thread/ERROR]: @ Post render
[19:08:34] [Render thread/ERROR]: 65539: Invalid key -1
[19:08:34] [Render thread/ERROR]: ########## GL ERROR ##########
[19:08:34] [Render thread/ERROR]: @ Post render
[19:08:34] [Render thread/ERROR]: 65539: Invalid key -1
[19:08:34] [Render thread/ERROR]: ########## GL ERROR ##########
[19:08:34] [Render thread/ERROR]: @ Post render
[19:08:34] [Render thread/ERROR]: 65539: Invalid key -1

Could you explain in more detail when this happens?

I got this error just by entering the game and creating the world. The error doesn't occur when there is only epic fight mod, but if I install jei, the error occurs.

It looks like this happens regardless of JEI, even in a client with only forge and EFM installed, when a tooltip is rendered the log is spammed with constant opengl errors.

I found that removing the hotbarkey cause the error, maybe is because of this line of code
at yesman.epicfight.client.events.engine.ControllEngine.tick(ControllEngine.java:232)

for (int i = 0; i < 9; ++i) {
	if (isKeyDown(this.gameSettings.keyBindsHotbar[i])) {
		if (this.playerdata.getEntityState().isInaction()) {
			this.gameSettings.keyBindsHotbar[i].isPressed();
		}
	}
}

@InvalidArgument3 Could you explain in more detail? what tooltip was being rendered?