Filming dates - attributes don't show

I discovered that while one can add attributes to filming dates (which makes sense for when there are multiple seasons for a show or additional photography happens long after the main shoot), they end up not being visible. For example, Only Murders In The Building has five different filming dates. But only trying to edit them reveals that these entries are referring to its five seasons so far. https://www.imdb.com/title/tt11691774/locations/?ref_=ttrv_at_dt_flmg Is this a display error or is there some reason for this?