Problem with planing view - by: kobetsu

Hello,

I have problem with planing view - please take a look on the picture:



As you see there is Activity "eCatalogue / ...." with WBS: 12.1, next there is activity "Backlog" with WBS: 12.1.2.1, next there is activity "Protection" with WBS: 12.2

When I move activity "backlog" its WBS will be updated correctly (12.3) and also planing view will be updated.

I cannot find any rule when from time to time such issues I observate on the planing.