Windows 11 Desktop SVG File Thumbnails Get Blacked Out?

Not sure how long this has been going on for…but if I save an SVG file to my desktop, it first looks as expected, but then gets blacked out. This behavior is only hapening on desktop, not in File Explorer folder view. For example:

enter image description here

But then some indeterminate time, but not very long, later:

enter image description here

Any ideas as to what is causing this or how I can stop it?