what's the issue you have on edge? i've tested on edge & it seems to play fine, but the game will not play unless you allow third-party cookies for the page.
unfortunately i don't know what the issue could be for the emulator could be as i don't use that specific emulator, but if you could send your .sav file through a link @ https://npckc.site/#contact i can take a look & see if it's an issue with the .sav or game or if it's an emulator compatibility issue.