Yes, it's "UpdateTitle"; I just typed it wrong.
This is really weird ... it's the INI file ... but it's NOT the INI file!!!
If I start v28 with "/ii" (no INI file, the test works (the title is changed for 15 seconds).
If I start v28 with ANY INI file ("@d:\tc2*\tcmd.exe") the test fails (the title is not changed) ... whereas, the test succeeds (title changes) with any of TCC24~TCC27.
It's time for an exhaustive search for the offending directive.