I feel for you. I can’t imagine this dragging on for 2 years. So glad you’re resolved. I was only a day into grieving my SSL SIGMA ( which is no longer supported on Ventura and now a “legacy product”. I Was remaining philosophical, until the aggregate device issue came along with it’s own spikey bat… . Agreed. It would be great if anyone affected by this could contribute here…
Off Topic but since you brought it up: I have an SSL Sigma as well and have it working on Ventura. I had to update ipMIDI manually to the latest version (small fee for that) but have it working here with the Sigma Delta app. I also have a 1st generation SSL Nucleus that controls everything.