There are actually 6 episodes...

I swear there are 6 episodes to this OVA and not 2. MAL and every streaming site I have checked only list the first 2 episodes but when I torrented the show I somehow got 6, I am sure its not a mixup because they all have the same opening as the first 2 that are on MAL and all sorts of sites. IMBD Also says there are a whole 12 episodes... Does anyone else know about this?

The 12 episodes are all split up differently and have separate listings here:

https://myanimelist.net/anime/1007/Ranma_%C2%BD_OVA
https://myanimelist.net/anime/1008/Ranma_%C2%BD__Yomigaeru_Kioku
https://myanimelist.net/anime/1011/Ranma_%C2%BD_Super
https://myanimelist.net/anime/5493/Ranma_%C2%BD__Akumu_Shunmin_Kou
https://myanimelist.net/anime.php?id=1010