Mask acting strangely with world space UI

Hi guys, lately I've been working on implementing world space ui into our game and I've encountered a problem with masks. Basically I have a scroll panel with a mask and text inside. The whole panel faces the camera's forward vector ignoring y rotation. When I move the camera up or down a bit the text is getting masked.

Here are some images showing it and also a package containing the prefab.




Anyone got any idea what's causing that behaviour and how to fix it?

 

Just realised it's deferred rendering that is causing that, is there a way around it?

 

I'm having a similar problem. Is there a solution? I seems to be doing this even in Forward Rendering as well.