[5.2] Canvas stops rendering in windows standalone in D3D9

I've been running an unfortunate issue where canvases just up and vanish in some circumstances when running in windows standalone and D3D9. The easiest way to trigger it is just to try to fullscreen your app, and the canvas stops rendering the UI (the UI remains interactable). This doesn't usually generate an error, it just stops rendering. I've had scripts in my main project also cause it but I'm not certain what the trigger is, but in those cases it gives the incredibly unhelpful "D3D9:...

[5.2] Canvas stops rendering in windows standalone in D3D9