Testcomplete not executing interactive tests when triggered with TestComplete plugin .

Looking at the messages that you have posted - Jenkins cannot create a new user session, like logging into the desktop, because JNLP connects within the currently logged-in user's session. Therefore, any "Run interactive user session" setting in the Jenkins TestComplete plugin is ignored. TestComplete or TestExecute will simply run in the current desktop session.

This is just a warning, not an error, but it means TestComplete will only run properly if the desktop is available and unlocked, since JNLP cannot create sessions.

Refer to https://support.smartbear.com/testcomplete/docs/working-with/integration/jenkins/index.html and https://support.smartbear.com/testcomplete/docs/testing-with/running/via-rdp/keeping-computer-unlocked.html