We have some custom fields which are associated to multiple projects for all issue types.
The problem:
A project leader for 3 projects wants a filter which returns all issues within the 3 projects having the custom field showed up and sorted descedning by this custom field values.
Now, although issue navigator was configured to show the column for that custom field, when searching two or all three projects this columns is not showed.
When searching within a single project all function correctly.

I've tried different combinations of searches but same result.
(My proposal to have 3 filters one for each project was not accepted)

If you have any suggestions on how to solve this I'll be happy to know them
thanks