okay, going down that trail, wiped cookies and went through recreating sessions.
At one point checked my browser and was down to chrome plugin, Privacy Badger. Somehow out of nowhere Plex decided to change how it handles cookies/sessions for external servers…including local server as well…
anyway, disabling for site/s or allowing individually resolved the issue.
any official statement from plex about this change?
edit;
changing back to 32400 got the green tick back on there (even though it was working already)
