i have some physics objects that work perfectly fine when in the editor but when i build the WebGL build and upload it to itch.io they no longer collide with the world and just fall through it
This question is somewhat old now but hopefully this will help someone as I found this question when I ran into this exact problem. It turned out to be that some of the models weren’t marked as read enabled so when I pulled in their meshes to make a mesh collider in runtime it failed. So after selecting all the objects and setting Read/Write enabled to true and applying the change it works fine now.
Note that I was able to figure out what the problem was by enabling development build so that I could see error messages in the log when they were encountered.