Inserting an empty line between list items

I did a belated TW update recently, and I’ve found that my solution for using wikitext to insert an empty line between list items (or indents) is no longer valid. Did something change?

# item-1
#:
# item-2

: indented content
::
: more indented content

I’m just curious to understand — since I suspect it’s the browser. I’m now using Timimi on Firefox instead of Brave. The wikitext (above) still works as I wanted in Chrome.

It’s not a problem for me, I know I can use a custom style.

The browser I use is Edge and the version of tiddlywiki is v5.3.6

yeah, seems to be Firefox only.