Error: Similarity Report 21% but "No Matching Sources"

I've had this happen a few times. I have a student essay with a positive similarity score (in this case, 21% matching), but when I click on the percentage, it says "There are no matching sources for this report). 

I am not filtering results. 

What is the issue here? Is this a false positive? 
Did the student find a way to mask the matching portion? 

I am using Turnitin through Canvas. 

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    • Gill Rowell
    • Advocacy & Thought Leadership Specialist, Turnitin
    • Gill_Rowell
    • 1 yr ago
    • Reported - view

    Matt Masucci This is a strange one! I suggest putting a ticket in to the Support team, they will be best placed to figure out what's going on. Please email tiisupport@turnitin.com

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