Sandbox creation not possible after moving/renaming a subproject with Current project configuration

Hi,

after renaming a subproject via the "Move Subprojects Wizard"

a sandbox creation of the renamed subproject with the current project configuration is not possible

Example:

1)

Moving  /Testing/Testing2/project.pj

to

/Testing/Testinng2/project.pj

2) Create sandbox via GUI and the Create Sanbox Wizard after selecting the renamed subproject in the project view

Preselected Projectname:

/Testing/Testinng2/project.pj

Current configuration: Mainline

we get the Error:

 MKS125211: The project file /Testing/Testing2/project.pj is not registered with the current server.

However: With changing the project configuration to Normal (mainline) the sanbox creation is possible. Sandbox creation with CLI (si createsandbox --project=/Testing/Testinng2/project.pj D:\Test) is also possible.

Question: Is this a Bug in the Sandbox Creation Wizard?

Integrity LifeCycle Manager 11.1.0.961

Thanks in advance