What's the reason you're not migrating the entire catalogue with the migration tool that's provided to you with the 11g installation? How did you move the RPD?
+1 for Simon on that
The code (both XML and LSQL) of analysis changed between 10g and 11g, OBIEE generates queries in 11g with some extra functions if needed and so copying LSQL between version is the best way to end up with a nice 11g environment but not really clean analysis.
You can run the Upgrade Assistant as many times as you want and you can run it only on the web catalog if you want.
So run it against your 10g catalog, store the output in a temporary location and then copy objects (analysis) from there to your 11g web catalog and check the output.
That's the clean way to try to reduce issues in the future (your 10g LSQL will maybe still behave the same in 11g, but what about 12c the day you migrate?).