Hue lights, sensors work from 1 bridge but not

Hi,

I have 2 Hue bridges connected with Hassio. They both have the newest firmware. I noticed recently, and all of a suddent that I have all these sensors available like binary for presence, lux, and temp. BUT, they only appear from 1 of the bridges, I can not get the same sensors from the other bridge. The other bridge definitely should report similiar devices. Any ideas of what I need to check please??