UI bug within Fusion in Resolve Studio 20 beta 2

Hi all!
It's ENTIRELY possible I've screwed something up, but I don't think so...
I can't see my spline paths/handles when using Polygon or Bspline nodes.
Is it a bug? Have I accidentally turned part of the UI off? I can't find anything in any menu.
Here's a video of my problem:

All advice welcome!
It's ENTIRELY possible I've screwed something up, but I don't think so...
I can't see my spline paths/handles when using Polygon or Bspline nodes.
Is it a bug? Have I accidentally turned part of the UI off? I can't find anything in any menu.
Here's a video of my problem:

All advice welcome!