Server Version#: 1.24.0.4930-6000
Player Version#:
Not sure if I’m posting this in the right category but here goes
Since a few days it seems that Plex Web doesnt want to load properly in (various) browsers. I tried Chrome and Edge. First I thought that PMS might be ‘hanging’ but that seems to be up and running fine. After further inspection it looks like a few resources are not loaded in properly. They keep pending, which kinda keeps the ‘loading circle’ in the browser continue on and on. I did a few requests while tailing the PMS log and sure; it gives a nice 200 OK for the files that are served to the browser but I’m a bit lost regarding the ‘pending’ status. I’m not sure if I’m looking at an PMS issue or a Plex Web issue here, so please feel free to move/change this post 
Sep 15, 2021 11:58:02.983 [0x7ff9bac46b38] DEBUG - Final path: "/volume1/@appstore/Plex Media Server/Resources/Plug-ins-ab6e1a058/WebClient.bundle/Contents/Resources/js/main-179-0dbe656b6c439163f250-plex-4.59.2.18290-5569e89.js"
Sep 15, 2021 11:58:02.983 [0x7ff9bac46b38] DEBUG - Content-Length of /volume1/@appstore/Plex Media Server/Resources/Plug-ins-ab6e1a058/WebClient.bundle/Contents/Resources/js/main-179-0dbe656b6c439163f250-plex-4.59.2.18290-5569e89.js is 2849538 (of total: 2849538).
Sep 15, 2021 11:58:03.031 [0x7ff9bb6d6b38] DEBUG - Completed: [192.168.50.5:60648] 200 GET /web/main-179-0dbe656b6c439163f250-plex-4.59.2.18290-5569e89.css (6 live) GZIP 70ms 544048 bytes (pipelined: 2)
Sep 15, 2021 11:58:03.116 [0x7ff9bb6f9b38] DEBUG - Completed: [192.168.50.5:54807] 200 GET /web/js/865-865-78193251058f8893775e-plex-4.59.2.18290-5569e89.js (6 live) GZIP 136ms 1038698 bytes (pipelined: 1)
Sep 15, 2021 11:58:03.232 [0x7ff9bb6d6b38] DEBUG - Completed: [192.168.50.5:52025] 200 GET /web/js/main-179-0dbe656b6c439163f250-plex-4.59.2.18290-5569e89.js (6 live) GZIP 252ms 2849538 bytes (pipelined: 1)
Sep 15, 2021 11:58:42.836 [0x7ff9bac46b38] DEBUG - Request: [127.0.0.1:46827 (Loopback)] GET /library/metadata/183153 (3 live) GZIP Signed-in Token (mickeldaelmans)
Browser resources screenshot:
