backup isn't working

Nothing happens when importing backup files. No indication that the backup is being restored or any notification. Progress data still stays the same even after restarting the app.

tried importing the zip file that the app creates when you create a backup

tried extracting the file and importing the progress.sdb

tried importing the file from the original directory that the app creates when you create a backup 

My backup file is only 4 months old so I don't know what's going on. All I did was change devices.