Unable to deploy gdbserver to Android device for debug builds on Windows

Trying to start debugger on Windows for an Android project using a QtCreator (which is already using the "new" debug mechanism => QtCreator 4.6 onwards) i receive the message:

Can not find/copy C++ debug server.

Investigating this issue further lead me to the method AndroidRunnerWorker::uploadFile() (in src\plugins\android\androidrunnerworker.cpp).

It specifically fails on the execution of the command

adb shell run-as my.package.name sh -c 'cat > gdbserver'

Debugging the call further showed the result message:

adb.exe did not respond within the timeout limit (30 s).

This happened to me on different machines and different projects and QtCreator versions (4.6+).

When running the mentioned command manually it expects the file contents of gdserver binary. Since the content comes from a QByteArray, maybe just an EOF is missing?