Unity3d Hub not showing window content

I have parallels 15 on a MacBook pro 2018 running 10.4.6 macOS. I installed a guest of the same version.
I have installed Unity3d hub (this is how you install Unity3d now).
The window isn't showing most of its content. There should be text boxes and buttons and all kinds of stuff. Here is a picture:



I don't know what it should look like because it is in the middle of the new install wizard. Here is what the final hub looks like after everything is installed:
This is running on my Host computer outside of parallels:

 

Hi Tony,

I am having exactly the same issue. Did you find a workaround in the end?