Stroke using touchscreen appears black until I lift pen.

[Randy Peck]

I'm using Illustrator 25.2.1 (latest version) with a Surface Studio 2 (latest firmware, latest Windows update.)  Using the Paintbrush tool, with either a fixed or pressure calligraphic brush, when I draw a path with my mouse, the path is drawn showing the correct/expected stroke color (such as yellow) as I draw.  However when I use the Microsoft Pen to draw on the touchscreen, the stroke is drawn in black until I lift the pen -- at which time it changes to the expected stroke color (i.e. yellow.)

I'm tracing over a dark image, so it's really hard to see while I'm drawing like this!  Of course I've restarted my computer, and I've tried every different setting I could think of, such as using GPU versus CPU for graphics, to no avail.  Suggestions appreciated!

[Larry G. Schneider]

Have you tried setting the image layer to a lower opacity? Double click the layer in the Layer panel and check the box that says Dim Images to 50%.

[Randy Peck]

Thank you Larry, for the workaround.  I can of course do that, but I'd like to know what the root problem is.

[Randy Peck]

I am still hoping to learn if this is a bug or a setting? Thank you!