SAP BW-IP no lock entries in RSPLSE

Hello IP Experts

I have seen a lot of SAP BW IP installation and I am used to see locking entries in transaction  RSPLAN.

With this customer the locking entries are not shown  (TR RSPLSE / Tab locks).  Not surprisingly my colleague and me can plan at the same time the same thing.

Does anyone have a good idea? Why?  At the end I like to get back the locking functionality .

Here some detail information:

• - Bex Query row is set on  lock relevant
• - I have set up relevant characteristics for lock up (RSPLSE)
• - Lock table is ‘shared object memory of server
• - In expert modus, the  ‘no locks’ flag is not set
• - I see the lock entries in transaction SM12
• - SAP_BW 730 / Level 0005
• - Oracle

Thanks  a lot for some hints and ideas.

Best regards

Christian