Lewis wrote:Hi jimho,
please re-read what i typed

. I'm not trying to make plugin work. that is fine i can find and use plugin with 2019.1.5 work fine,also with 2020 bu standalone is not seeing 2020.xb3 slave. that is problem here

if the master standalone is already right version, it should be working already, because through the plugin you can see the slave means the slave side is correct already,
just try restart the standalone at the master side, if it still not working , try reinstall the standalone at the master side...