To check your beads you can put them in a ziplock with your hygrometer. But if they are mostly white, it sounds like they were releasing moisture and it may be they just need time to stabilize.
I havent had any issues with my 65% beads. But also remember this is the time of year that the weather is changing. In the coming months(just like in spring) we will see many threads asking about Rh and humidor issues.