One of my team members has been experiencing this problem which I've never seen before and honestly thought was impossible. I can't replicate this phenomenon on my own computer so I don't know which settings were changed on her computer to result in this.
To test the problem she told me about, I typed "(In parenthesis, the LCD display is explained.) the the" and confirmed the segment and it entered the TM. Then I immediately deleted "the the" and confirmed the segment but instead of overwriting the segment and showing a CM/100 match, it shows both most recently confirmed hits with a -1 duplicate penalty. I thought such penalties would only apply to duplicates from different TMs. But this is the same TM and same project so I'm very lost as I thought this went against the very core of Trados's code. Please assist.