That is common. Try it by making nodes (40+) with the WME tool (selecting 2 segments and clicking the icon) and then save. One error will appear, then you click save again and you will see the "while you were editing....." message. Once you click permalink, and it reloads the map, the new nodes will be there
Christopher C. Enhket
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Coordinator, Beta editor/Editing expert, Campeón.
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