3D Spherical Panorama in Photoshop CC 21.0 shows only black screen

Hi all,

my 3d spherical panorama shows only a black screen, it worked on my laptop with Photoshop CC 20 (but extremely slow).

After i updated to 21 on my laptop, it is black as well.

As I just wanted to try it out today, I don't know if it worked on my desktop before 21.

Any ideas? I already checked the "system > performance" and 3d tab. Changed several settings and it still does not work.

There are no updates to my drivers. Might there be a bug I cannot find online?