Yesterday and today two prints failed. Honestly, I was thinking that people are a bit over cautious about the stock USB drive. But it seems that people are right that stock USB drive is really bad quality.
I've tried to transfer the photon files from the USB to my computer to see if the files were OK and voila, the first file that stopped gave an I/O error on computer. The second one was transferred without any problem but i decided to check it with Validator and voila again, the file was corrupted where it has stopped.
So if any new users reading this, please just throw the stock USB drive (or just use it on unimportant personal file transfers) and use a quality USB drive for the printer.
翻譯年糕