Linux Instant Clone agent initialization state error 1

I'm trying to set up a CentOS 7 automated desktop pool. I have the following setup:

vSphere 6.7

Horizon 7.6

CentOS 7.4

Agent is installed

Linux machine is joined to the domain via `winbind`. A script (read/write/execute only for Root) is saved under /root. This script joins the machine and will update the /etc/hosts for DNS hostname resolution. The script runs correctly.

When publishing the pool, the following error appears on the desktops it attempts to provision:

Instant Clone agent initialization error (1): failed (waited 10 seconds)

I cannot find any information on this error.