A blog entry since it was hard to find about [WayBack] “Isolated segment – all turns from it are closed” – Google Search as the source reveals not much: no explanation at [WayBack] wme-history/index.html at master · wazers/wme-history · GitHub (A repository containing the pretty-printed index and JavaScript files of the WME to investigate version differences – wazers/wme-history).
Same for [WayBack] “Added big junction” waze – Google Search and [WayBack] wme-history/index.html at master · wazers/wme-history · GitHub
Note that updates you make to the map can take a while to update to the actual live map (even after approval).
You can check at [WayBack] Waze Status for the latest updates.
I added a piece of road in between Thunstetten and Herzogenbugsee, but could not save it:
The Wiert Corner - irregular stream of stuff 