I see there is a new version of Node-Red released.
People are seeing weird things happening and so on.
They are clearing the cache and other stuff, then what happens changes.
When testing new things, why can't you open a PRIVATE WINDOW and try it there?
There are no cookies saved, or any other things like that.
This would be as good as clearing out the cookies (etc) but this way you get to keep the cookies you otherwise would have wiped.
Just a thought/suggestion.