Interesting problem which has been identified this morning ... it appears that certain iviews cannot be added to the portal favorites, and upon closer inspection, it appears that those iviews all have the "&" character in the name field.
For example, we have an iview with the name of "SAA013 Summary of Sales & Gross Margin vs Approved Plan". As you can see, its quite long, so anything to save some space.
If I remove the & and replace with "and", then I can add to portal favorites.
Has anyone else come across this and found an alternate solution? I could probably get away with convincing the client to allow "and" to be inserted, but then there's quite a few iviews that will have to be renamed, which is a rather tedious task.