E-Mailed the LBD of the latest design that caused the error. I’d like to reiterate that this design doesn’t always produce an error (after recreating the design, I was able to export it without issue) and that other designs have caused that error.
My only guess as to what is happening is that either the export isn’t always “clean” or sometimes the program doesn’t load up all the objects, causing an error. I don’t know.