@mark many apologies for this extremely late response. I got caught up in tech and then no longer had access to the systems where i was running into this.
Current tests with Mojave and the latest NDI Watcher 1.0.1 -
NDI 4 Watcher 1.0.1 on Mojave Isadora 3.0.8 reports correct resolution
NDI 5 Watcher 1.0.1 on Mojave Isadora 3.1.1 reports correct resolution
in brief test, all is working as hoped!
thanks so much