Profile Audio Reference wrong playback speed

I am not talking about importing an audio file to the project. I am talking about the 30 second snippet I can add to my profile of VST Transit.
When saying upload I mean the profile in VST transit. When saying importing I generally mean importing an audio file into a project.

The VST-Transit window I can open without a project open, so I guess the snippet I want to upload to the profile has nothing to do with the media pool.
When clicking upload the windows explorer opens and the file is uploaded to the 30 second slot in the profile in vst transit.
I tried 44.1 and 48 kHz and both not worked. The file was placed correctly in the windows media player.
But lets stop talking about that, because the problem is not there anymore.
The current problem is, that the uploaded file to the VST-Transit profile is not saved after closing cubase.
Thanks for your ambitionsto help so far.
I don’t want to bring another problem to the topic of this post.Maybe my snippet is 1 second too long. Will check that.