When I run .rdf it runs successfully all the time but when I
have to run a .rep, my report request is stuck in the report server queue. But the
behavior is not consistent; I notice that sometimes .rep runs fines.

Note:

1.i have few information shown as part of Document taxonomy (report property) + i have bookmarks as well in my report output format.

2.report output format is pdf

Can anyone please advise me on this issue