Hello,

1. Create a new document with 5 pages.
2. Draw out a text frame on each page and insert a number starting with "5" on page 1, "4" on page 2, "3" on page 3, "2" on page 4 and "1" "on page 5.
3. Now try to sort the numbers into the correct order (1, 2, 3, 4, 5) by dragging the thumbnails to the correct place in the Pages palette. You will not succeed because the respective side always jumps one position too far. I reported this bug over a year ago and it still isn't fixed! (Indesign version 16.1)