Every reboot i got automatically new shares counted up --> after new firmware

[Bennor]

Do you have an external USB hard drive or device attached to the My Cloud? And is the name of that hard drive “movie”?

What you are seeing is what is happening to some who attach external USB hard drives or devices to their My Cloud. See the following thread which discusses the issue.

https://community.wd.com/t/usb-drive-makes-new-name/152675