Fuzzy match value disappears when I start editing a segment

Hello,

 

I have a file which lots of fuzzy matches from the TM (TM has been applied when creating the project). However, when i start typing in the target segment to edit it, the value between the source and target column disappears, instead of becoming translucent. Any idea why that is and how to fix it? It's very annoying and will prevent my reviewer to see these segments are fuzzy matches.

Thank you.

Anne