1. Did you check whether the tool generate a log file " C:\Windows\Temp\McAfeeLogs\EPR.log" and its content?
2. Also did you check the windows event logs for any events in regards of the execution of the tool or its failure?
get-eventlog -list
get-eventlog [log name]
Example:
get-eventlog Application
You can also filter the list to just show a particular type of entry such as errors or warnings.
get-eventlog System -after (get-date).addhours(-1) | where Entrytype -eq Error
3. Did you try to deploy and execute it via ePO?
4. What switches did you use?
5. Did you include --accepteula?