Re: External Radio / Omnirig has become unstable.
Here's a link of my trouble https://sdr-radio.groups.io/g/main/topic/67985999#52212
And here's my settings I am using the 7610 so you don't need those.
Probably not to much help.
But look at the settings for HRD and Omni Rig.
I had problems like yours and it com port conflicts.
I had a time of it to but it did finally work.