My case was similar, it runs a lot of times, but only once it showed DONE or Finish I don't remember, that was the only time that it created the map, after that when the battery is low goes to the dock but it looks like it lose the "Resumption" and start from scratch that's why it never creates the map.
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I'm facing the same problem, in my case it showed me the map when I moved the vacuum manually(using the Remote control ) to clean a certain area but just one time, I never see another map again. I'm waiting for the next one 😪 . The hard to think that Samsung developed this app.
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