I just received another useless pointer from tech support to see article:
https://ttlc.intuit.com/questions/4624248-efiling-it-states-that-i-must-include-an-8990-for-a-pass-t...
When you read this article there is no explanation as to whether it applies to Form 1120 for corporate returns, and the solution cannot be found in the program.
This is symptomatic of a an organization that is simply recycling other users solution in place of their direct support. Consequently, you get garbled and typically irrelevant information which they pass off as a "solution".
If you really want an eye opener see this thread:
https://ttlc.intuit.com/community/Get-your-taxes-done-using-TurboTax/Turbotax-2018-Deluxe-crashes-co...
