current version useless - DONT UPGRADE – Papers 3 - Reference Manager Review

I cannot download my pdf files from my dropbox to the iOS. Thus the iOS version is functionally USELESS. The current version (3.4.8) and the previous version have the same problem. If you have v 3.4.6 DONT UPGRADE. I am stuck with this p.o.s.
Review by DrScience on Papers 3 - Reference Manager.