It was actually Zora's Domain but I kept saying Water Temple. But yeah, I googled around and apparently like one other dude had the same problem as me. Fortunately I was able to get it working from an old savestate I had from before the Spirit Temple so I only had to beat that instead of making it all the way back. Back on track.
Also PLZZZZ HALP! N64 ROMZ DON'T WORK!