I added a blockquote, and as a result it merged the paragraph right under the blockquote with a separate paragraph right under that paragraph, with both showing them as together in visual editor, but in the source editing, they were shown as separate. Fixed it, but was recommended by an editor at the help desk to report it.
URLs for the original help desk request and recommendation to report: https://en.m.wikipedia.org/w/index.php?diff=1260580208&oldid=1260578541&title=Wikipedia:Help_desk
https://en.m.wikipedia.org/w/index.php?title=Wikipedia:Help_desk&diff=prev&oldid=1260581424