This afternoon I finally saw something I had been hoping to see in years of playing OOTP - a player hitting 5 HR in a single game! (FWIW, it was Anthony Rendon) But when I went back looking for it later to find a screenshot, I noticed it wasn't listed on the Accomplishments screen under league history. Here's a cropped list of 3-HR games from that screen:
feat. Javy Baez hitting 7 in two days! wild
It
does appear under his personal accomplishments:
Not sure why this would happen - does OOTP just go looking for 3- and 4-homer games?