Interesting. Did you run a full web dev client including local OC4J (OAS)? We are on TR220.127.116.11 (apps 9.0) using OC4J and it was my understanding that a full JDE Web Dev client simply would not run on Win10 for our TR release, namely OC4J. I believe our CNC staff run a full client on Win10 but they couldn't get OC4J to run correctly but since their work doesn't require it, it wasn't an issue. Obviously for developers it would be an issue.
Yes, at my prior employer, my recollection is that we did use web dev client with OC4J on TR 18.104.22.168 (apps 9.1). I don't recall what magic it required unfortunately. If I get a chance, I'll reach out to colleagues still working there.