BobKamman
Level 15

The more things change, the more they stay the same. This happened last year too. Here is a post from a CPA in Texas (where the state society has been diligent in pursuing these problems):

"5/13/2019 6:55PM CDT – Wolters Kluwer CCH has just published the specific instructions for getting extra time to file specific tax returns with the IRS that are due on 5/15/2019. Taxpayers affected by the service interruption have an additional 7 days, until May 22, 2019, to file the returns listed below.

• 990 – Tax Exempt Organization
• 1120 – Corporations
• 1065 – Partnerships"

I don't see this as a problem with the transmission from the third-party intermediary to IRS.  It appears to me that the link from preparer to third party was inoperative.  My first thought was that this could be due to hackers, but I wonder now if the complexity of the returns, along with the high volume just before the deadline, is responsible.