The update posted to the thread I moved this from (Updated to 0.9.23 and cannot send jobs to laser - #40 by LightBurn) is not the same as the publicly available download.
The link above is a new, updated internal version that we’re testing to see if it resolves the communications issues with MacOS and Ruida controllers. If you can download and install the appropriate version from the link above and give feedback as to whether it works for you or not, that would be helpful.