Duplicated records in mobile version.

Hi i have a little trouble developing a job to erase the duplicate records into a db level. In the web version works fine but in the apk it shows me that records duplicated yet. Im trying to clear that, erasing the cache and user data from the app (and only this last method works). Im using the version 3.1.2.

Note: The record can be deleted when enter into the duplicate record, which gives a message that it is not found.

Duplicated files.

Is there any way to eliminate the cache and data of the app so that the user does not have to be eliminated manually every time the he synchronizes the last changes?

Thanks.