All I can say is that I'd like to have a new release out before the end of the year.
If you've got USB Loader GX installed to Priiloader then you should uninstall it, since that prevents the loaders updater and SD card mode from working correctly.
Instead of installing the loaders DOL file you should install the UNEO channel booter DOL file for Priiloader. Information on how to do that can be
found here.
If you do don't have USB Loader GX installed to Priiloader then check that your SD card isn't in read only mode.
Settings
>
Updates
>
WiiTDB.xml