ContextActionService not firing with Cancel state for Mouse Inputs

Bug Reports Engine Bugs
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1

Normally if you hold a key, and then press Escape, and then let go, the “Cancel” state fires and you can handle your code there, however the same does not apply for Mouse inputs.
In this video, I have the shooting function binded to MouseButton1, and as you can see the Cancel state does not fire.

My code:

function ActionBehaviors.Charge(actionData, inputState, actionName)
	local startState = actionData.States.Start 
	local finishState = actionData.States.Finish 

	local layer = GetLayer(startState)
	local current = StateClient:GetState(layer)
	
	print(inputState)
	
	if inputState == Enum.UserInputState.Begin then
		if StateResolver.CanOverride(current, startState) then
			StateClient:PredictState(startState)
			PlayAnim(humanoid, actionData, "Start")
			TriggerActionModule(actionName, "Start")
		end

	elseif inputState == Enum.UserInputState.End or inputState == Enum.UserInputState.Cancel then
		if current == startState then
			StopAnim(humanoid, actionData, "Start")
			StateClient:PredictState(finishState)
			PlayAnim(humanoid, actionData, "Finish")
			TriggerActionModule(actionName, "Finish")
		end
	end
end
2

Thank you for your report!
Have you tried using IAS instead, it largely superseded CAS?