Vertical isn’t “any 9:16”
The usual canvas is 1080×1920, but attention lives in the middle third—huge type at the very top or bottom fights captions and buttons.
Covers appear tiny on the profile grid. A readable face or product beats a detailed landscape.
Mistakes that kill profile CTR
Grabbing a random video frame as the cover without intentional crop.
Avatar cropped too tight—circles clip hair, ears, or logo.
Thin text on covers: unreadable in the grid.
Recommended SMALLADAPT flow
Export a frame or make a graphic, open SMALLADAPT → TikTok → Cover or Vertical, frame it, download a JPG ready to upload from phone or desktop.