We are excited to announce that we have launched our new Hive Community! HiveNation will remain as an archive, but all new posts, discussions, and articles will be created on Hive Community. You can visit our new community at thehivecommunity.aerohive.com
I know of some issues when you are logged in as the hivemanager admin, but switched to another VHM, and try to upload images. It somehow logs you out of hivemanager (not tested with 6.2r1 yet). Maybe this is something alike?