When closing/stopping my server, it starts the "stop" command and stops my plugins. when it gets to DiscordSRV, the whole server becomes unresponsive. players won't get kicked, server doesn't shut down at all. I have to forcibly kill the process to shut the server down properly.
this only happens on 1.16.9 for me. (server is running 1.14.1).

no errors in the console.