Flashing lights when looking at "hidden" prop tokens.

Describe the Bug

Certain props, when turned into tokens and then made "Hidden" to the players will flicker with a large white circle when you view them in the GM Overlay view as they remain hidden. The flickering starts when the camera moves and stops if you stand still. There is also a small black box in the white flickering circles. The flickering itself is bad enough that you would not want to look at it if you were prone to epileptic seizures.

Upon testing around with it, it seems to only happen with some prop tokens, and not others.
For example the "War Room" prop token flickers, but the "Stone Throne" does not.

To Reproduce

1.Open a new map
2.Create a "War Table" prop.
3.Turn it into a token with the "Convert Prop to Creature" button in the GM Overlay.
4.Right Click it and Hide it.
5.While having the GM Overlay open, move the camera around while looking at it, and it will flicker.

Screenshots/Videos/Twitch Clips

The effect is not the same when viewing an image, but hopefully it gets the idea across:

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