I'm running Jenkins on Windows Server 2019, using a Freestyle type of job. I have a Powershell build step that simply invokes an internally written tool (compiled .exe). This tool - among other things - generates debug output for the operations it's doing.

The problem is that the debug output never makes it past Jenkins. It's somehow stopped. DebugView, which I'm using to see the debug output, doesn't show anything. By contrast, running the same tool from within a separate, interactive, Powershell console results in the expected outcome in terms of debug output, with DebugView showing everything as expected.