Shutting down source and destination folders during conversion

I’ve started shutting my NAS’s down each night, and I’m curious after MCEBuddy finishes a conversion, what happens if it can’t find the destination folder? I don’t want it to get stuck in any kind of error loop if I try setting this scenario up to test. The source folder is also on an NAS, but I believe MCEBuddy works in a temp folder on the PC it’s installed on. Does anyone know if either of these conditions will cause an issue?

The conversion will fail if it can’t write to the destination folder.