I have seen yesterday and today that there is a problem with my gold badges. Now I have this
and yesterday I had this:
I'm not interesting for the medals but is there someone that have the same my problem and why?
This is part of an update to the review queues. You now get one Steward badge for every 1,000 reviews in a single queue. For more details, see Steward badge can now be awarded multiple times -- backfill details on Meta Stack Exchange.