Problem still persists, the monitor appears in the screen settings after 8 seconds, says it was disconnected. I believe that Apple developers should only use iMac to not solve this problem of hubs for external monitors, if they used that and were with the same problem it would come out in the first fix.
Problem still persists in 12.1 beta 4 (21C5045a)
Topic:
App & System Services
SubTopic:
Hardware
Tags: