Hi! I can’t remove this segment. Old editor don’t even select it. New one reports about modifyng deletation while editing.
You might have to wait a few minutes (hours/days) as Waze might be having problems processing changes. This happens from time to time. The road is probably already deleted.
Actually you need to make a request to support via the nanorep option on the support page. Give them the permalink made while the segment is selected to highlight it. And the segment number. They’re pretty quick about it.