Hi guys!
The title says what I found, for the first time, while editing a Recording File.
While editing it, I selected a small portion of about half a second and asked OT to delete that selection…well, it answered me: ONLY ON BOUNDARIES!
After some trials I found that it let me cut/delete portion of the file only if at least one of the start/end cursor is on the actual start or end of the file.
What a shame…
I can actually use the Duplicate Selection > command to “substitute” that unwanted portion…but it would be better to have a proper cut function.