When running /stop on a server, it takes several minutes (More than 15) and it stops in the line:

[Server thread/INFO] [Framework/]: Sending config unload event for mighty_mail.server.toml

We running on the MM version: 1.0.14
Forge version: 47.1.3

Seems to be exactly the same problem as this issue on Configured

@Voltch3r-VII It is currently being investigated. If you would like and if you're using the 1.20.1, you can try out this version of Framework that has extra debugging and a potential fix: MrCrayfish/MrCrayfishFurnitureMod-Refurbished#30 (comment)

I'm having the same issue here, I have a "temporary" way of shutting down the server that works once the issue gets fixed. I use the command /save-all before forcably killing the program. The program will always reach the same line of commands if you were to use /shutdown afterwards. It's probably not the safes way of going about it, but it honestly beats potentially losing items that you have worked for.

@Voltch3r-VII It is currently being investigated. If you would like and if you're using the 1.20.1, you can try out this version of Framework that has extra debugging and a potential fix: MrCrayfish/MrCrayfishFurnitureMod-Refurbished#30 (comment)

Cheers, I'll look into that.

I replaced the Framework-Fabric to version 1.20.1-0.7.8 that you provided, thank you. It still hangs but it has made more progress than the previous iteration, it has spat out a quary about weather 'mighty_mail.server.toml' has been uploaded as shown in the screenshot (I believe this is what it could be asking, I could be wrong)