Parser Error when changing SE16h outer join definition

[TMNielsen]

Hi 

I'm using SE16H in ERP with SAP_BASIS 750 SP 25.

I have a working join condition with primary table VBAK and secondary table VBAP.

Now I want to add 2 more fields from VBAP, so I select KWMENG and VRKME:

But when I execute the selection I get an error:

If I create a new join definition with the same fields, there is no error, but every time I try to change an existing join, this happens.

Can anyone tell me what is happening here and how can I fix it?

Best Regards
Thomas Madsen Nielsen