playlist problem

I have added songs to my playlist but the don't show up in the viewer
I can't add them again because it says the are already in there
They seem to be in the 'share', or export of the playlist
This is a new problem
Thanks

Could you please make a backup of your songs and reinstall the app?

I deleted the playlist that was a problem and it the glitch has not returned, thanks

I would like to use dropbox to sync my data automatically, can you tell me where on my android the data file is stored so I can set an auto backup

Thanx

Thank you for letting me know! I'm glad it worked out.
The data is stored on the internal memory of your device.
I would recommend you to make a manual backup in Settings/Backup and save that file to your Dropbox.