RTH/Max altitude measuement units clarification

Can anyone tell me if the RTH units actually get changed when I set my “Measurement Unit” setting to Imperial?
When I set the RTH & Max altitudes, the app still shows metric and I get the warning message about FAA max altitude…

I tried a search and saw one person said he has never seen these altitudes change to Imperial on the app. But, I am wondering if that is just a lazy programming error on DJI’s part.

Thanks