The other thread is not about using another item in preview, but actually reselling the other item within your item. For example you want to purchase an Audiojungle track, mix with your own sound FX and include it with your logo animation. Then you need to purchase Extended license and get permission from the author.
Please head to official thread where all authors and staff members are discussing this and getting the answers you’re looking for: http://themeforest.net/forums/thread/new-statements-invoices-february-1st-2015/159252
Submission problems shouldn’t affect content flow. It takes up to 7 days to review a submission which means we have a “buffer” of submitted files and whenever review team is available we go through them. So unless a submission problem is not fixed for 3-4 days it doesn’t affect content flow in any way.
Seeing German flag and reading about 200 color related errors I bet Etix is using German version of After Effects and have bought project with no universalized expressions.Here’s why it happens and a quick solution on user side: http://aeteacher.com/how-to-fix-expression-language-error-in-after-effects.html
May I ask why the need for Quicktime? I always use image sequences
No problem with that. If you read the rejection message again it says: “Video assets must be provided as image sequences or video files within a Quicktime MOV” so image sequences are fine as well.