Hello,
As it was working just fine a few weeks ago, what changed?
Install only TE on the agent's machines would be the most sensible and preferred thing to do, and if that solves the problem and you suspect an issue with "TestComplete test adapter installer" contact SmartBear support https://support.smartbear.com/testcomplete/message/?prod=TestComplete
I think I found the issue.
I noticed that the machine that are running TestComplete have a TestExecute process running in task manager but which i cannot kill directly.
Since I had a similar issue in the past, i already added a pre step in my pipeline to kill any running TestExecute.exe process. However this task was not able to kill the running process and neither was I manually.
However killing TestCompleteService15.exe did terminate TestExecute.exe.
After that TestExecute is back and running the tests.
