Why would vertical footage be rejected as Technical Error ?

Hi,

I did post some vertical footage after having seen that there were already some on Adobe Stock and mine were rejected with the reason "Technical Error", I do not really understand as :

1/ there are already some on Adobe Stock

2/ there is a real demand on the stock market for vertical footage, namely for mobile oriented ads

3/ I didn't see in the FAQs that it was a problem

4/ they were labelled and tagged as such (so that the reviewer have known that it was not a mistake)

Cheers.

Bruno