Frame substitution recursion error

I keep getting a Frame substitution recursion error on one of my Productions:

I had gotten the error on another Production when I linked to video files on LucidLink. However, with this Production, all the files are on an OWC Thunderbay HDD. I read on a post about this topic that switching to software encoding can fix it; but I'm on a silicon Mac, where it's locked hardware encoding. 

Does anyone know how to fix this error? Thanks again.