OK! Now we are somewhere. Turns out that this Slider Revolution issue was due to on older single Pro license that was part of another themeco account entirely. That older account belongs to my partner and he set that site up originally. It was never part of my Unlimited account until just now when I switched it over.
Once I used my license instead, I did have to delete the plugin and reinstall it from the Pro dashboard but that was easy and it fixed it right away.
I’ll also say that the license validation happened immediately as well – just like i’d expect it to. Obviously, this domain has had its DNS correctly configured for years. This makes me think that the difference is when we create new sites with a fresh DNS configuration there is some problem with that side of things. You said we could eliminate that as a possibility but… I’d like to put it back on the table. I really think that theory has legs.
Sorry for the confusion about the Slider Rev portion of this discussion That was my bad. There are other sites in my Unlimited account that start with the word “charlotte” so it didn’t jump out at me. Anyway, that part is 100% now and it all makes sense. If we can solve the License validation issue, we should be good to go.
Thanks @charlie