Ronan van Riet schrieb:

> Thanks for your help Lucas! But the Problem is still there here.

What about a new query, as proposed?

You said IBExpert is selecting the records, your query doesn't.
I haven't seen anything special in your query.

Does the error happen, when setting Active to TRUE in the
ObjectInspector, too?

And as Stan said (as yopu said, since I haven't seen his post just your
reply) rewrite your sp to either

SELECT prj.ROW_ID AS row_id, ...
^^
or
SELECT prj.ROW_ID, ...

I don't think anyone in this list can reproduce this error.

Luc.