- Let's say you have a locked tab which is the active one.
- Close TC, then launch it by setting a different directory for that panel (it happens in both cases, left or right) in the command line.
- TC will open the specified directory in the locked tab and now the tab is locked to the new directory. You lost the lock to your original directory.
In this case if a locked tab is active, TC will open a new tab (even if /T is not specified).
However, in case of launching TC even /T doesn't work (although that's expected, since the help states that /T works with /O).