Error: 'Unable to create directory' when closing the StatsPack Browser window with a Custom SQL. (4241180)

'Unable to create directory'

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Steps to replicate:
1. In the Database | Monitor | StatsPack Browser, select 'New Chart/Grid' 
2. Give a 'Node name'
3. Select 'A grid' with db-Version '10gR2'.
4. Select the 'Next ' Button. In the next window, paste the sql-query, pressing 'Next ' and give a Grid name.
5. Then push 'Next ' and you get a Preview output of the query.
6. Finish creating the procedure by pressing the 'Finish' button. The query is integrated in the StatsPack Browser.
7. The query works as expected. After closing the StatsPack Browser window, the error message appears.

STATUS:
Waiting for fix in a future release of Toad for Oracle.