Hi. Tried installing addon ExtendedAE for Fabric on versions 1.20.1 and 1.19.2. The server does not stop completely. It stops at the message and does not shut down completel:
[Server thread/INFO]: ThreadedAnvilChunkStorage: All dimensions are saved.

Log file attachment.
latest.log

I have notified the addon developer. I got a reply from him: "well it is casued by configuration and extendedae is using that mod as config lib".

Hi, I'll check it out

1.19 versions have been fixed

• 1.19.2
• 1.19.4

Also there is no Fabric version for 1.20.1, at least not official one