Hi @Ph_We,
Thanks for reporting – have a look at Fix text paths for issue galleys · Issue #1801 · pkp/pkp-lib · GitHub and try applying one of the two patches linked there (both are equivalent, just committed to different branches).
For the double-upload issue, can you check your browser’s console to see whether you’re encountering a Javascript error?
Regards,
Alec Smecher
Public Knowledge Project Team