Hi,
I have a weird problem. While in editor the physics work just fine, when I build the game for web, the physics get the issue of not allways colliding correctly and as a result object passing through. (The usual issue). But the thing is that in editor play, everything is working fine.
Any though on this are very welcome 
I think this is a “speed-issue”. Usually the game runs faster in the build than in the editor.
Things you can try:
- Change the “Fixed Timestep”, but be careful this setting has performace impacts.
- Use bigger colliders on fast moving objects
- Use a raycast to test for collisions on fast moving objects as described here