Homebrew Question N64 emulation problem, is it common? (Banjo-Kazooie)

[Necturion98]

Hi,

I am currently replaying Banjo Kazooie. I started out on the PC and now migrated my save file onto my switch and I emulate with RetroArch's mupen64 core and everything was working quite well.
I played until Mad Monster Mansion on PC and tried to 100% the level yesterday on the switch twice because I ran into a problem im both runs: after a while RetroArch won't load new zones properly. I entered Mumbo's House and entered a black room and even Mumbo's model was invisible. When I went out into the level it was fine and it was like this with all sublevels.
I would love to continue playing on the switch in my bed or on the couch but like this it is impossible. Is this a common issue with N64 Emulation on Switch? Will Overclocking more do the trick? I really need help with this.

thanks

 

[naddel81]

Pj64 plays it nicely.

 

[Necturion98]

Pj64 plays it nicely.

I know but it is not available on switch now is it? Also, I want to earn achievements on retroachievements