Hey there, I know I'm bumping a really old thread but I found this on Google and it made me realize I was aligning the knife backwards! So thanks, first of all...
I have the exact same issue njvack had, with my Bosch MUM5 grinder attachment.
Is it possible that the problem is a direct result of aligning the cutting knife backwards? Wanted to ask that here before going through the hassle of buying new meat just for the test...
Thanks!