Why can't I post video on twitter?

Related questions

1. How do I download videos from MyMedia app?
2. Why can't I post a video on Twitter?
3. How do you get a full picture on twitter?
4. How do I post a Facebook video on twitter?
5. How do you post a video longer than 2 minutes on twitter?
6. How can I save a tweet?
7. How do you save videos from Twitter on Android?
8. How short can a twitter video be?
9. How do I download twitter videos on Chrome?
10. Does twitter support 4k video?

Tags

1. #seconds
2. #tweet
3. #longer
4. #desktop
5. #click
6. #today
7. #starting
8. #photo
9. #videos
10. #512mb
11. #limited
12. #video
13. #within
14. #mobile
15. #button
16. #upload
17. #process
18. #either
19. #uploading
20. #twitter
21. #users
22. #media