Please Note: On Windows, Elgato Stream Deck 4.2 will display that the plugin is not installed when using OBS 21.x or earlier.
In Windows 10, you may see a message that "Elgato Remote Control plugin is missing". That is the current name of the plugin that interfaces with OBS.
In macOS, OBS 21.x will simply crash on launch.
A workaround is to:
1. Update OBS. The latest version is 23.1
2. Install (or Reintall) Elgato Stream Deck 4.2
OBS 22.x may also work fine, but we always recommend that you use the latest available version of OBS.
We apologize for any inconvenience this issue may have caused.
OBS Download Page
You can download OBS here:
Solution For Those Who Don't Want To Upgrade OBS
If you do not wish to upgrade to the latest OBS from OBS 21.x, you can downgrade Elgato Stream Deck 4.2 to version 4.1.
You can get various versions of the Elgato Stream Deck software here:
Elgato Stream Deck Software Releases