**System Information**
Operating system: Windows 10 Pro 19043.2130
Graphics card: GTX 980
**Blender Version**
Broken: 3.3.1
Drawing over a reference image does not always show the stroke as it is being drawn, making it difficult to draw above reference. Using the images as planes addon as a temporary workaround.
The strange triangle shape shown in the video is pretty consistent. E.i. I can move the camera around slightly and as long as it's relatively head-on the exact same triangle shape appears while drawing. The shape is relative to the reference image. Panning the camera does not pan the glitched triangle area. Moving too much to the side makes it go from partial visibility in front of the ref until the stroke is finished, to no visibility at all in front of the ref until the stroke is finished.
{F13972818}