There were no segments included in your link, however I’ve found this segment nearby which you added recently. There were a few things wrong with this segment which I’ve corrected, including all turns into and out of this road being disallowed (which means Waze couldn’t have routed you in there) and no speed limit. I’ve also spotted this other road too which also didn’t have a speed limit or any turns allowed.
There’s loads of tips and tricks for new editors here though, including a quick start guide and lots of the basics to get you started!
A map tile update is run every 24 hours (assuming no gremlins in the system), and takes 20-24 hours or so to complete and go live.
Because of this I generally advise 24-48 hours or so, as if you make a change a minute after the update starts, it won’t get picked up until the next update.
At the bottom left of the WME window, there is a status bar of the update cycle too.