iOS support for morph targets

[kevinhu]

Hi everyone,

I'm trying to get morph targets working with Expo and React Native. I wrote a quick test case based on a twisting cube example with R3F, and it run smoothly on web.

However, when I try to run this project on an iOS or iPadOS device, the app crashes with the following trace:
.

If I disable the morph targets, then the cube renders. I also tried loading in GLB/GLTF/FBX files with preconfigured morph targets, but those failed as well. Has anyone built a working morph targets example in Expo?

Here's my code if you'd like to reproduce it: https://github.com/kevinhu/expo-morph-targets.