If you are using Catalina you will probably have issues with the eVideoIn and eSyphonIn plug-ins. On Catalina these plug-ins have an issue with remembering video and syphon sources. This is fixed for the new release, but you can already try it with this test app:
It contains just the app, which is a hidden file. You can make it visible by pressing cmd+shift+. (including the dot). You need to replace the current EboSuite.app from the EboSuite folder in your user library with this one (you might need to give permission the first time you launch the app, since it is not installed by an installer). Press cmd+shift+. again after you are done to hide the hidden files again. Let us know if you need any help. Sorry for the inconvenience.