What’s an NR return? My search indicates it’s for non-resident aliens, not US citizens...
“What’s an NR return? My search indicates it’s for non-resident aliens, not US citizens...”
You file a state NR return, not a federal NR.
This thread is discussing state residency and state taxation. NR is a non-resident state return...IOW you live in one state and earn income in another. This has nothing to do with a federal return for non-resident aliens, which appears to be the trail you went down. Again, the discussion is about state residency.