I have been following this link for a week and trying to get TT2020 to run on my iMac. First had to upgrade from High Sierra. Unfortunately went to Big Sur, the latest 11.2. Bit Mistake. It is a Big Problem for a number of my other systems now. After a long conversation with Support at TT, it was advised that the only viable solution now is to go back to Mojave. Will someone let intuit and Apple know that they have, and are waisting a lot of valuable time of their customers.
