Why does every issues with 'Sign up not completed' require technical support? Are there no straight forward answers??

Thank you all for the reply! I tried opening the link again this morning, and it worked! Just had to wait for several hours to reflect the changes of apple-app-site-association.

Hi dermantapaz, I'm facing the issue too. Did you managed to solve it?

Hi I'm facing the same issue. Did you find out the solution?

After sending several messages, they finally replied.

I solved this. I was trying to edit my video directly from photolibary. So, save the video to documentDirectory first, then edit worked for me.