Providing a Permalink, would be very helpful.
https://wiki.waze.com/wiki/Permalink#Permalink

As far as we know, editing the map should have no effect on being able to report hazards or traffic. Have you tried reporting something in this area and seeing if you get an error? Are you getting valid routes through the area? Could it be that nobody is reporting anything in this area?

Is this the new bridge (overpass) you are talking about?
https://www.waze.com/editor/?env=usa&lo ... ayers=1285#

Is this the 'dead zone' you are talking about?
https://www.waze.com/editor/?env=usa&lo ... ayers=1285#

Any chance you are losing cell service in those areas?

Just to confirm batman_1957

Are you talking about this area?

https://www.waze.com/editor/?env=usa&lo ... 1,63275496

It is hard sometimes to identify what is being mentioned without a PL