UserInputService.MouseBehavior won't lock center

[DiskoTecha]

I’ve been locking the mouse center for over-the-shoulder and first-person cameras, and I would simply lock it by changing the MouseBehavior of UserInputService to LockCenter, but now that doesn’t seem to work. Is there something I’m missing here? I loaded up a blank project and put this script into StarterPlayerScripts.

local RunService = game:GetService("RunService");
local UserInputService = game:GetService("UserInputService");

RunService.Heartbeat:Connect(function(dt)
	UserInputService.MouseBehavior = Enum.MouseBehavior.LockCenter;
end)

I’ve used it before and it worked, but only if I put it on the heartbeat event, otherwise it would unlock after the first frame. Now, it simply doesn’t lock, and removes the ability to rotate the camera by right-clicking.

[Jackscarlett]

Apparently this seems to be an Engine bug

LockCenter and LockCurrentPosition are Broken

Issue Type: Other Impact: High Frequency: Constantly Date First Experienced: 2020-03-25 00:03:00 (+00:00) Date Last Experienced: 2021-02-17 00:02:00 (+00:00) Reproduction Steps: Create LocalScript in PlayerStarterScripts Insert the following lines of code local UserInputService = game:GetService("UserInputService") UserInputService.MouseBehavior = Enum.MouseBehavior.LockCenter Hit Play Expected Behavior: When mouse behaviour is locked, the mouse is meant to be locked either t…

[EmbatTheHybrid (Embat)]

I’m not sure if this will work for you, but I used RenderStepped instead of Heartbeat and it worked for me

Edit: Even heartbeat was working for me? Strange…

[opplo]

I’ve listed an answer here you should try:

LockCenter and LockCurrentPosition are Broken

Correction this works when binding it to RenderStep and a priority higher than the Camera priority. But I don’t believe this behaviour is documented anywhere. local UserInputService = game:GetService("UserInputService") game:GetService("RunService"):BindToRenderStep("MouseLock", Enum.RenderPriority.Camera.Value + 1, function() UserInputService.MouseBehavior = Enum.MouseBehavior.LockCenter end)

[DiskoTecha]

Thank you! I also figured an odd workaround, it seems to only stay unlocked if I have tool panels on the left and right of the studio. If I take off the left tool panel, then it locks correctly.

Because of this however, I’m not certain it has to do with that known bug. I don’t know if it is the resolution and therefore how it would work on smaller res devices once shipped. I’ll take a look at those lines in the old and fixed versions of the playermodule, and if I can figure out the reason I’ll post something again on this thread for others who possibly have this problem.