Hi, very happy to hear that the app is helping you. Yes, we will apply to dropbox to increase the user limit.
Upload fails maybe caused by connectivity issues or dropbox might be full.
You can also try to simply directly upload the actual data folder from you local hard drive to your dropbox and then download from your device. Simply copy the whole epicGM folder (found in your "local app folder" /Gavelsoft/epicGM)
Additionally, if you could give me a bit more detail about your case, it would help me improve the dropbox sync feature. I just need the number of files and the rough size of the files.
Cheers!