Caught a swarm April th e 4th. Hived everything went great moved to a new yard away from home. Went to look at them on Sunday May the 23rd. When i pulled up i was surprised to see a large swarm heading east. I was just a few minutes to late no stopping them. I had everything in mediums. I started with 2 mediums. I added another medium 2 weeks later. 4 weeks later I added another medium with a queen excluder. When I looked in the hive there was not a single bee in the super above the queen excluder. The other medium I added 2 weeks after capture was totally full of capped honey. In the top super not any comb, Nothing what so ever. Is it a common occurence for a captured swarm to swarm again in 7 weeks? Any suggestions on the queen excluder. I have queen excluders on my other hives an dont seem to have a problem.