OBS Studio version 30 beta is out, as of the second half of August, 2023.
Due to a library update inside OBS Studio, certain plugins, including Stream Deck will cause it to crash on macOS. This seems to not affect Windows.
Our recommendation is to stay on OBS Studio 29 for now. If you have already updated to OBS Studio 30 Beta, please go back to version 29 to avoid the crashing.
We are working on an update for our OBS Studio Stream Deck plugin so that it is compatible with OBS Studio version 30. We appreciate your patience while we work on this solution.