Heartfelt Beads

I purchased a couple of the Heartfelt 65% tubes for my new humidor. They beads seem to be falling apart. I open the humidor and there are small pieces of beads everywhere, plus they don't hold humidity for very long. I spray the tubes so I'm not over soaking them. I open the end cap and look at the beads to see if they need more distilled water and a lot of them look half size.What's up. Is this common.
certexas