In addition, typing text in the line above the numbered item, or deleting the blank line above the numbered line with Ctrl+X or Delete will also revert the number to 1.
Following Add option to disable numbered list automatic numbering (auto-updating) - #19 by pilif0 I tried to disable Smart Indent Lists, but it only stopped creating new numbered items, and still reverted existing ones to 1 (while I want exactly the opposite).
My trick for now is to keep 2 blank lines above numbered items, but it doesn’t give me the formatting I want…
Similarly, when you insert lines between two numbered items, at first the number (n) below will increment to let you insert (n-1)., then if you press Enter again it removes the (n-1). and the number below reverts to n. which is great, but then you must absolutely not type anything or it will edit the line above n. and make it reset to 1.
Again, the trick is to add more lines and always work at least 2 lines away from the numbered item below…