Icons and grids not showing up in Drupal 11

Thank you.

Fine at my end.

Try setting folder permissions correctly: libraries, files, etc.

I downloaded the library from this link you placed on the page, https://www.dropbox.com/scl/fi/h7ca8cpa8m5p3dhyxnnag/gridstack.zip?rlkey... Would that be the correct version?

A bit cumbersome at mobile for checking :)

See project home under Versions for the correct library.

You can also copy or reuse your previous downloaded file if using 2.x.

What works at 2.x should work at 3.x.