FolderItem problems open from ios

This work perfect from PC but when i open from iphone and select the jpg it return nil way
Dim f as FolderItem
f = GetopenFolderItem(".jpg" )
if f <> nil then << return nil from iphone folder
EZCanvas21.setPicture Picture.Open(f)
end if

is a Bug on XOJO 2015 v3.1 and Xojo 2015 r4 i have go back to XOJO 2015 2.4