I am running into technical problems as well when I try to do the efile transmit. It comes back as transmit failed and suggest I update TT in 24hrs. I did it with no help. I am using a macbook pro running ios 10.13.6 High Sierra. sent a couple of message to TT so no response yet. I paid for the Turbo Tax Live Deluxe 2019. I'll wait for a few more days to see if TT / Intuit does address this issue.
