Jenkins plugin shows red test while TestComplete test results are green

Let me post a solution from the Support team here Zuzana_Z .

>>

Thank you for sending the files. The -1 exit code means that the TestComplete service was unable to launch TestComplete because the license check had failed and TestComplete could not obtain a license. You can find information on TestComplete licensing in Licensing [https://support.smartbear.com/testcomplete/docs/licensing/index.html].
 
Tip: Inspect the Error.log or Silent.log files to get more information on the possible reasons for the license check failure. For more information on these files, see the description of the /SilentMode [https://support.smartbear.com/testcomplete/docs/working-with/automating/command-line-and-exit-codes/command-line.html#SilentMode] and /ErrorLog [https://support.smartbear.com/testcomplete/docs/working-with/automating/command-line-and-exit-codes/command-line.html#ErrorLog] command-line arguments in the TestComplete Command Line [https://support.smartbear.com/testcomplete/docs/working-with/automating/command-line-and-exit-codes/command-line.html] topic.
 
So, you need to make sure that when TestComplete is launched, all modules enabled in File | Install Extensions ... have a license and can get it.

<<