Make no mistake, this is a problem, and the problem lies squarely with Intuit (TurboTax).
The workaround is this:
Print the Federal Forms or e-file them or whatever you do with them. Print out the K-1 forms for the partners, and the "State" K-1 forms come out, too.
Next Press ctrl-2 to go to "forms view" and go through the state forms, one by one and print them. At the top of each form it says "Keep for Your Records" (worksheets you don't have to send) or "Attach to your IL-1065 or your IL-1120" meaning you need to mail in that form.
Then, go to the IDOR and fill out the IL-1065-V online and print it to accompany whatever payment you need to make. Put the voucher form with the check and the forms to be filed to Illinois, and that is your IL return.
