Server fails to start after last official PMS update

Plex Media Server
1

Server app shows as running but Plex apps (incl. local) can not connect to PMS.
Tried restarting twice but issue persists.

Server Version#: 1.26.0.5715 (smb)
Player Version#: 9.0.6.31998

2

Started after 30 mins or so.