So I exported a video from Sony Movie Studio and uploaded it to SS. I was also planning to upload the same file to AS and P5 but I got an "unsupported file" error on SS. And this has me puzzled. It's an mp4 video and has a frame rate of 25fps. According to VLC, it has the h264 codec and it's also an MPEG-4 video. And apparently, both SS and AS accept MPEG-4 videos. The codec information in VLC also mentions AVC (part 10) and avc1. I thought that surely, a video with those specs would be acceptable but I don't know much about AVC. Would anyone have any ideas on why I'm get an "unsupported file" error for this video file on SS?

I may have ideas, I have a lot of such ideas. But I have a question for you, are you one of those who put pluses under offensive posts addressed to me from a Russian troll nicknamed zeljkok?

Nobody has to answer you with this irrelevant pathetic question. 

I may have ideas, I have a lot of such ideas. But I have a question for you, are you one of those who put pluses under offensive posts addressed to me from a Russian troll nicknamed zeljkok?

I have absolutely no idea what you're talking about.

I hope that I can get a proper answer to my query from someone.