I am having the same issue with Release Version on my 2019 MBP 16". First external USB-C connected 4K monitor works fine but as soon after plugging in the second USB-C 4K monitor trackpad stops accepting clicks and then a minute or two later the trackpad stops working and then about 5 minutes later system crashes and reboots. These monitors are the same DELL 2415Q and it I switch monitors and plug the other one first it works fine but when I plug in the other the exact same behaviour so this is not a monitor issue. Was this not fixed before the release??? Thanks Thanks