If you go to the Plan board and click on 'Edit Name' the new name for your Version will not be stored properly. While it will be shown directly, after a refresh the name will have reverted back.

Steps to Reproduce

1. Create an Agile Project (the Sample Project will suffice)
2. Create a Version
3. Go to Plan mode
4. Edit a Version name
   • The Version name is now changed on the board
5. Refresh the page
   • The Version name has changed back to the old name

The new version name is never stored.

Workaround

Change the Version name from the Project Administration section