New issue by egrain on void-packages repository

https://github.com/void-linux/void-packages/issues/23461

Description:

### System
voidlinux, x86_64 musl.

* package:  
mumble | 1.3.1 | 2 | musl | 4M | Open source, low-latency, high quality voice chat for gaming

### Expected behavior
Connecting to the server.

### Actual behavior
(Voidlinux) Client saying: Remote host closed connection. 
(Archlinux) Server saying: umurmurd[144061]: WARN: SSL handshake failed: -16512

### Steps to reproduce the behavior
Install a umurmur server on Archlinux and connect to it via mumble from a void musl machine. 

### things I tried
After I got the SSL handshake failed error, I did the whole Openssl create key/certifcate thing on the voidmachine, used these for the umurmur server instead, still no worky.
Deleted the .config/Mumble/*.p12 certificates. Made new ones. Same result.
Archlinux mumble clients connect fine though without issue in both cases (creating the key/cert files for the server with either openssl/libressl).

Tomorrow I'll install an umurmur server on a voidmachine, to see if that works. 

Thanks for reading. Thanks for helping. I'm new here, don't bite my head off. Thanks.