Roblox math broken or me?

Help and Feedback Scripting Support
#1

Hi,

So my button effect module was working fine, but recently i checked my old game that use it and… boom it don’t work properly!

So firstly in local script i require module script with my effect function then i do:

ButtonEffect(Button1)
ButtonEffect(Button2)
ButtonEffect(Button3) 
--etc...

Then in module it do some math:

    local appearance = button
	local backdrop = appearance:WaitForChild("3d")
	local origin, origin2, speed = button.Position, backdrop.Position, 0.05
	local pos = backdrop.AbsolutePosition - button.AbsolutePosition
	local distance = UDim2.new(0, pos.X, 0, pos.Y)
	print(
		tostring(distance).."   / "..backdrop.AbsolutePosition.X.."  / "..button.AbsolutePosition.X.."  / "..
        backdrop.AbsolutePosition.Y.."  / "..button.AbsolutePosition.Y.."  / "..
		button.Name
	)

What print is printing:
Screenshot_360

This is how button look like:
Screenshot_361

As you can see pos is subtract of AbsolutePosition of backdrop (dark blue thing in image) and button and it supposed to be around {0, 11}, but somehow it getting into {-285, -44}. I have no idea what wrong, since i crearly see that X AbsolutePosition is the same and should be 0, but it becomes a -285 ???

NOTE: when i do:

ButtonEffect(Button1)
ButtonEffect(Button2)
ButtonEffect(Button3) 
--etc...

ONLY First function (Button1 one) will have this problem and others that are below it will be fine! And if i change positions like this:

ButtonEffect(Button3)
ButtonEffect(Button1)
ButtonEffect(Button2) 
--etc...

Then now Button3 will have problems and others will not!

So is this roblox problem or i do something wrong?

#2

Noticed that if i will make the frame where buttons are hold visible for a moment and then hide it, it will work good. Heres what i mean:

ButtonsParentFrame.Visible = true
ButtonEffect(Button1)
ButtonEffect(Button2)
ButtonEffect(Button3) 
ButtonsParentFrame.Visible = false

Currently i will use this to fix the issue, but its so strage…