Jeff Scruggs

Your UPM db was most likely overwritten by hers when she saved her UPM db to your Dropbox. AFAIK, there is no way to recover/revert the UPM db file back to your db. Only thing I can suggest is to have her backup her UPM to her own Dropbox and you can then manually overwrite the UPM.db file on your Dropbox with the your UPM db. EDIT: Dropbox does have folder history options but those look to be locked away behind their paid storage options.

Your UPM db was most likely overwritten by hers when she saved her UPM db to your Dropbox. AFAIK, there is no way to recover/revert the UPM db file back to your db. Only thing I can suggest is to have her backup her UPM to her own Dropbox and you can then manually overwrite the UPM.db file on your Dropbox with the your UPM db.

You need to allow UPM access permissions to the "SD card". This is done by going to the Settings for the phone, click on Apps, find/click on UPM, click on Permissions, click on Storage, then allow UPM access to your Storage. The storage location that UPM uses is: /storage/emulated/0