Backup Failure Vers. 3.19.1

Hello,
I'm having trouble saving a backup to my USB stick or hard drive.

I'm running the latest Hog 4 PC version on my Windows Surface running Windows 11.

I have a show that I would like to transfer to another device, but unfortunately I can't backup the show. The error message "Creating the backup archive - Show backup failed" always appears.

The file is there afterwards, but has strange characters in the name with "Ä - ~ "etc.

I'm desperate, maybe someone here can help me.

greetings from Germany