The atem seems to work fine after their last update to version 8.6.1. After upgrading OBS to version 27.0.1 (64 bit), I am getting a flickering on the screen, randomly throughout my broadcast and everytime I change cameras(on the atem) or everytime I use the flying Key, downstream key, or the fader slide to move between views. By switching from Program Preview to the cut bus it was made so I could complete todays church service but when using the fader slide it becomes unusable.
Above is the log file that was captured from today's service. Here I will include a link to the video so you can see the flickering.

"Waiting Out the Storms" | June 13, 2021 | Unity Atlanta Sunday Service 11:00 am | Reverend Jennifer Sacks | "Waiting Out the Storms" | Sunday Service 11:00 am | Reverend Jennifer Sacks - Part 2 of the 4 part series "Seeing Some Changes in the Weathe
"Waiting Out the Storms" | Sunday Service 11:00 am | Reverend Jennifer Sacks - Part 2 of the 4 part series "Seeing Some Changes in the Weather"