Starnge lock problem with iSphere in RDi

Hello,
 
I do have a very strange locking problem in RDi when I load a member into
the LPEX editor in edit mode and then start the iSphere compare editor for
the same member. In that case I cannot save my changes in the LPEX editor.
 
But when I do it vice versa (first start the compare editor in browse
mode, then open the LPEX editor in edit mode) I can save my changes in the
LPEX editor.
 
I also can save the changes, when I use two instances of RDi. So there is
definitely no "real" lock on the IBM i. At least I cannot see anything
interesting with WRKOBJLCK. There are locks, of course, but they do not
change when I start the compare editor. I am also sure, that iSphere does
not put any locks on the member if the compare editor is started in browse
mode.
 
See also: [1]iSphere ticket #146.
 
At the moment my best bet is that the problem is somewhere in QRWTSRVR.
 
Any new ideas? If not I consider opening a case at IBM.
 
Thank you for your interest.
 
Thomas.

References

Visible links
1. https://sourceforge.net/p/isphere/tickets/146/