Synchronization completed with errors: Several pairs folders write in common subfolder....

[stratoblu]

I want my user folder (C:\Users\MyUser) is duplicated with some exceptions on another disk.

So I created a folder pair, eg. C:\Users\MyUser > D:\MyUser

When Free File Sync has finished the procedure, in the report read eg.: "MySincro-E-to-M: Synchronization completed with errors" and then: Caution: Several pairs of folders write in a subfolder common. Please review the configuration. D:\MyUser\
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This error does NOT appear as often, but occasionally. I do not understand how to avoid ...

Moreover, the folder C:\Users\MyUser\ contains several folders, and it is normal that if I want to save them all (with some exclusions) must be written - all - to another location (D:\MyUser)