TDMS - conversion of logical systems

Hello,

during execution of activity "Assign Logical system names in receiver systems" I got empty list. Normally I was getting whole list of logical systems for both sender and receiver system. And now I have nothing...with message "No logical system name maintained for Receiver Systems".

Of course I checked BD54 and all entries are there, both systems are open, both on SP15.

Any suggestions from anyone?

cheers

Michal