Copy File tasks that are targeting one or more computers does not run and shows queued or pending start. Logs show similar messages with no explanation of why the task is queued
Deployment Solution 8.x
It was discovered in at least one instance of this issue that there were no Site Servers with Deployment Task Server Handler showing as an installed plugin.
The Copy File tasks in DS require at least one Deployment Task Server. In one instance of this issue, the ITMS environment had only the SMP and they were unable to install the plugin
It was discovered that the SMP had 3 partial installs of the plugin. This was able to be resolved by following KB Unable to install Deployment Task Server Handler on Site Server
Once the partial installs were cleaned up and the DS Task Server Handler was installed, the issue no longer occurred