There are different voices, so in case I missed something, I want to make it simple and clear.
1. If you see new items in the SpatialMap database list after saved in the sample, then all features will work, except you need to known how the sample is using the API. And to make it more easy to use, a new sample will be put online soon. You can also reference my previous post for how to use.
2. If you do not see any new items in the SpatialMap database (I mean, on the website, EasyAR develop center), but you can use edit/preview function of the sample, then there are probably something unusual happened. In this case, we need some details for diagnose, please send us emails with more information about your account and the issues you met, thank you.
UPDATE: A server issue has been fixed that some users may fail to see the uploaded maps in SpatialMap database from develop center while the "Using Rate" continue to increase. This issue is fixed on 2020.01.08 (UTC+8), so if you did not see uploaded maps at or before this date, you can now recheck the database and see if all maps are there.
UPDATE2: A sample named MapLocalizing_Sparse is online now, you can find the updated Unity sample package on download page. This sample shows the straight forward method to use map from database. There is no change in the Unity Plugin itself (EasyAR folder in the unity project), so only the samples package has been changed.