You have to load up a single player save for ragnarok. Just load one up and grab a drop, it will fix it. One of my tribemates had the same problem. It has to do with ascending, its weird
Go to all settings on your xbox, disc & blu-ray storage, then select blu-ray, select persistent storage and then clear persistent storage. After it is cleared turn your console off, wait a couple minutes and then unplug the power cord from your console for 5 minutes to do a full console reboot.
I've got the same problem.am still able to open cave drops but not obs or outside drops.doesn't matter what map or whether its dedi or offical same thing everytime!