Retrorch 1.8.4 - creashes on Retroid Pocket 2 with Mupen

I’m trying to run N64 roms on a Retroid Pocket 2. So far, none works.

As soon as I launch the frontend crashes to the device home screen.

The roms work on the device using N64oid, and on Windows with Retroarch 1.9.0 (The Retroid Pocket has 1.8.4 installed)

Could it be something in the roms? The only peculiar thing I remember about them is them being “big endian”