YES. This is a major annoyance of mine. In Las Vegas, there's a major freeway which carries I-515, US-93, and US-95. Navigating on Apple Maps, it seems to randomly choose one of these identifiers, but never mentions them all.
While driving on the new I-11 around Boulder City, which is co-signed with US-93, Apple Maps (the NEW Apple Maps, mind you) couldn't decide which road I was on. Every four miles or so, it would change the name of the road to the other name, and would even announce the change every time.
"Continue straight onto I-11 South." Even though there's no interchange for miles and miles.
Had this issue when I did a run up the Cali Coast to Big Sur a couple months back - was comparing AM and GM. Was wondering why it would suddenly make announcements like that.