Visual Comparison - no images / fimstrip / video

When I’m running visual comparison (/video) on private instance there are no screenshots, filmstrip and video generated. And there are no files generated on server.
All individual tests are having screenshots, filmstrip and video.

I’m running the latest version.

Is this a bug?

I am facing the same issue.

Not a bug (that I know of). The most common causes for this happening:

1 - The test agents displays are getting locked or going to sleep (by far the most common cause). When you connect RDP you need to reboot the instance or it will lock and you need to make sure that the display is set to never go to sleep and there are no screen savers configured.

2 - The file uploads for the screen shots fail because of temp directory permissions, post limits, etc.