File "???" Not Found

I have run into this error when trying to quit out of MC and I was wondering if any one else has seen this?

This does not crash the system, and you can just click "OK" save your bins and force quit MC..

This happens randomly and it is hard to pin down what exactly is related to or to recreate the error on purpose..

This is a new setup with a cylindar macpro running 10.9.5 and MC 8.4.1 on ISIS 4.7.4

Thanks

BTW the "???" is exactly how the error reads, there is no file name