Hello,
As you can see from the warnings above you are duplicating highways which then disrupts routing. Please do not place a highway on top of an existing highway.

If an existing highway needs amending/correcting it is OSM good practice to amend/correct the existing highway. Not to place a second highway on top of an existing one.

I've removed the duplicates that I can see. Please now make your corrections to the existing ways. This will keep all the history intact.

Regards Bernard.