Using my Samsung Galaxy Note 4, I had to do a clean install to attempt to update the app... and it works. But the problem is, despite having the image downloads from the site, the images don't show up. They are in the ygopro folder with the deck and replay folders, and I also tried putting it in the obb folder.

Help?

here try extracting this by zarchiver:http://www.mediafire.com/download/diu2g2adxn6cqfe/Ygopro-Android-pics.rar
and now try downloading this and extract this too:https://www.mediafire.com/?1fni1sw7q0v12sz
the first link i give is the actual card pics which if you extract it it will give you a file put it on a folder which is located on android/obb/co.ygopro.android/
as well as the 2nd link.

Okay. Thank you, that worked.

EDIT: fixed secondary issue

your welcome feel free to ask for help again