I only can accept and return at most 25 gifts, even when I see in fb requests that there are still a lot more.
I already deleted all requests in the fb-list, hoping that would deblock everything, but still this morning I only could accept and return 25 gifts, while there were 72 more in the fb-list.

The problem started last week, I think it is related to the recent fb-changes.
I have the same problem in DoA.