Thank you RNDawson for mentioning the file size. This turned out to be my issue when receiving this error and you saved my bacon at 8pm on the due date of the return, yup, I procrastinated! I had been able to file a return without issue a couple days ago but couldn't figure out what the difference was with this return. Intuit support is worthless, you almost always have to find answers within the community or on your own. I'm grateful to you!
