systemd service does not start (permission denied)

So today I decided to move my ts3 server from my old windows box to a new centos8 server. Everything works fine but now I am trying to create a systemd service file so the server can start automatically on boot. I can run everything nicely when I try to start things as the service user, but I cannot start it as root (using systemctl). A little more info: The user I want things to run with [root@lnxsrv01 opt]# id teamspeak uid=1000(teamspeak) gid=1000(teamspeak) groups=1000(teamspeak) My folder structure (notice permissions and exec flags) [root@lnxsrv01 teamspeak]# ll total 16380 drwxr-xr-x. 9 teamspeak teamspeak 4096 Nov 2 17:28 . drwxr-xr-x. 3 root root 23 Nov 2 16:11 .. -rw-------. 1 teamspeak teamspeak 629 Nov 2 17:30 .bash_history -rw-rw-rw-. 1 teamspeak teamspeak 66724 Jul 2 11:21 CHANGELOG drwxr-xr-x. 3 teamspeak teamspeak 192 Jun 17 18:27 doc drwx------. 4 teamspeak teamspeak 45 Nov 2 16:59 files -rwxr-xr-x. 1 teamspeak teamspeak 947368 Jul 2 15:24 libts3db_mariadb.so -rwxr-xr-x. 1 teamspeak teamspeak 2174344 Jul 2 15:24 libts3db_sqlite3.so -rwxr-xr-x. 1 teamspeak teamspeak 1096144 Jul 2 15:24 libts3_ssh.so -rw-r--r--. 1 teamspeak teamspeak 68141 Jun 17 18:27 LICENSE drwx------. 2 teamspeak teamspeak 270 Nov 2 17:10 logs -rw-rw-rw-. 1 teamspeak teamspeak 0 Nov 2 16:59 query_ip_blacklist.txt -rw-rw-rw-. 1 teamspeak teamspeak 14 Nov 2 16:59 query_ip_whitelist.txt drwxr-xr-x. 2 teamspeak teamspeak 29 Jul 2 15:24 redist drwxrwxrwx. 2 teamspeak teamspeak 8192 Jun 24 11:28 serverquerydocs drwxrwxrwx. 5 teamspeak teamspeak 8192 Jun 17 18:26 sql -rw-rw-rw-. 1 teamspeak teamspeak 3243 Nov 2 16:59 ssh_host_rsa_key -rwxr-xr-x. 1 teamspeak teamspeak 12033888 Jul 2 15:24 ts3server -rw-rw-r--. 1 teamspeak teamspeak 0 Nov 2 16:59 .ts3server_license_accepted -rwxrwxrwx. 1 teamspeak teamspeak 117 Jun 17 18:26 ts3server_minimal_runscript.sh -rw-rw-r--. 1 teamspeak teamspeak 6 Nov 2 17:10 ts3server.pid -rw-r--r--. 1 teamspeak teamspeak 282624 Nov 2 16:58 ts3server.sqlitedb -rw-r--r--. 1 teamspeak teamspeak 32768 Nov 2 17:22 ts3server.sqlitedb-shm -rw-r--r--. 1 teamspeak teamspeak 6320 Nov 2 17:21 ts3server.sqlitedb-wal -rwxrwxrwx. 1 teamspeak teamspeak 2654 Jun 18 11:51 ts3server_startscript.sh drwxr-xr-x. 2 teamspeak teamspeak 85 Jul 2 15:24 tsdns [root@lnxsrv01 teamspeak]# pwd /opt/teamspeak My systemd service file [root@lnxsrv01 teamspeak]# cat /lib/systemd/system/teamspeak3.service [Unit] Description=TeamSpeak Server Service After=network.target [Service] Type=forking WorkingDirectory=/opt/teamspeak/ ExecStart=/opt/teamspeak/ts3server_startscript.sh start ExecStop=/opt/teamspeak/ts3server_startscript.sh stop User=teamspeak Group=teamspeak PIDFile=/opt/teamspeak/ts3server.pid Restart=always RestartSec=9 StandardOutput=syslog StandardError=syslog SyslogIdentifier=teamspeak3 [Install] WantedBy=multi-user.target Relevant syslog entries Nov 2 17:26:36 lnxsrv01 systemd: teamspeak3.service: Failed to execute command: Permission denied Nov 2 17:26:36 lnxsrv01 systemd: teamspeak3.service: Failed at step EXEC spawning /opt/teamspeak/ts3server_startscript.sh: Permission denied Nov 2 17:26:36 lnxsrv01 systemd: teamspeak3.service: Control process exited, code=exited status=203 Nov 2 17:26:36 lnxsrv01 systemd: teamspeak3.service: Failed with result 'exit-code'. Nov 2 17:26:36 lnxsrv01 systemd: Failed to start TeamSpeak Server Service. Nov 2 17:26:43 lnxsrv01 systemd: Stopped TeamSpeak Server Service. When I su to the 'teamspeak' user and run the startscript from there, everything works fine. But I can't seem to get things working with systemd. Any ideas what I am missing here?