I purchased the upgrade to ST4 at the beginning of the month. Currently running 4107. Half the time I open ST the new window is off screen and can’t be seen. Thanks to someone on Reddit I now know that I can go into App Exposé mode to see the window, but then I have to drag it to a different monitor to make it usable again. I am on a 2019 16" MacBook Pro on Big Sur with two external monitors. Here’s the Reddit thread I started where two others are experiencing the same issue:
