Zero size attachment files after vBulletin 4 import
I manage a forum. There were some issues with that old version of vBulletin and loaded only thumbnails. We considered attachments were corrupted.
In 2016 tried an import with partial succes. The size of images from attachments folder was 0 bytes, even the extensions were changed.
I already wanted to delete the old upload folder, until I checked this month the files in Ubuntu and surprise, it loaded valid thumbnails and full-size images.
Again I tried the import, and no matter what I do, the size is zero bytes. What could I do to recover the attachments?
I use php5.6 and this is my initial import link: