I noticed a new genre of image posting on twitter today. They often have some variation of タップすると in the text of their tweet.

1st example
https://x.com/ra_mm062/status/2009981506924827054
This girl took into account the gaps that twitter places between images.

2nd example
https://x.com/yoruneko_milk/status/2009981204884533480
This girl didn't care about the gap.

Question:
https://x.com/Mia_KB_/status/2010132297572589975
Why didn't the trick work for this girl? Her four images don't get stacked vertically like in the first two examples.