Import activities with tree structure

Hello,

Not sure if this is just me - I tried importing a list of activities from CSV file (tree structure, with several levels of indentation), but after import the tree structure is not entirely recreated.
To be precise, up to one level of indentation it is ok, but for level 2 and lower the parent activity is not correctly handled.

See attached: expected result vs. actual result after import, and the CSV list in question.

Regards

OK, wasn't sure whether the use case had been tested already - it is quite possible that i have the same name several times, so i'll check on that front.
Thanks !

Hmm, maybe was a bit too optimistic: I tried again with completely new activity names, but I get the same result: the first level of identation is fine, but after that WBS gets lost.
Attached the example I used.