I've spent the last hour trying to find the official forum for Corel Painter 2020.
I set guides to visible and snap to guides is on.
When I drag from the ruler the guides sometimes don't stay. I have to drag and drop multiple times from the ruler for the guides to remain.
When I try to double click the arrow in the ruler to set the guide position it just deletes the guide.
After setting a guide down it gets deleted when I try to drag and reposition it.
Your product is GARBAGE.
All I can find on the topic is this page:
And it does not address the issue I'm having.
I just figured out that it's because I had the brush tool selected while trying to drag and drop a guide from the ruler. It only works if you draga nd drop while the layer adjuster/selection tool is selected.
THAT IS THE DUMBEST THING EVER.
If I do the same thing in Adobe illustrator or Photoshop I can create guides regardless of which tool is currently selected in the tools palette. This isn't even specified in your manual so I have to assume this is a product feature you put very little thought into.
You're asking people to spend money on this product AND trying to push a new version every year?
Address your current product for a few years first.