Auto-propagation is unchecked but similar new target segments are still auto-propagated?

Dear Community,

I have a simple problem with auto-propagated segments below each of the confirmed segment. I have a file at hand and  it includes many segments which have  90 % , 95 % similar to each other. In most of the places only a word is changing in the segments than others.

I translate and confirm a segment and  I see  that many similar target segments are getting auto-propagated as fussy matches.

I do not want them to come and fill up all the empty target segments but they comes automatically. To prevent that I use the "Enable Auto- propagation" box unchecked from the beginning, but it makes no change...

Do you have  any idea or experience that you can offer me to prevent the auto-propagated fussy match segments by itself when I  confirm a segment?

Thank you so much!

Best Regards,

Bahar