2 entries for the same episode

Hi, the episodes https://www.imdb.com/de/title/tt11285348/reference/?ref_=ttep_ep and https://www.imdb.com/de/title/tt10112232/reference/?ref_=ttep_ep are the same. It seems, both names are commonly used, but widely more "The Frozen Bond". So I think, this should be the title. And I also would seperate it from the main series https://www.imdb.com/de/title/tt5607616/reference/?ref_=ttrv_ov_srs , because it is an OVA, so directly made for video. And other than other OVA's, this episode is not an add-on to a former or upcomming season. As own entry, it should be the best, but connected with the main series (follows). The same is for the first OVA "Memory Snow" https://www.imdb.com/de/title/tt8565186/reference/?ref_=ttep_ep - I think, this should be seperated from the main series and be an own entry as video movie. And as the other connected with the main series (follows).