My Character Teleports Through Walls at Random—Is This a Physics Bug or My Sanity Failing?
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A character suddenly clipping through geometry is exactly the kind of Unreal bug that makes you question whether it’s physics… or just your grasp on reality.
Common Causes to Check:
- Collision Presets: Make sure the character capsule and the wall mesh are using compatible collision channels (e.g., block vs. overlap).
- Physics Interaction: If you’re simulating physics on anything near the player, a sudden impulse or overlap can fling them.
- High Frame Delta or Ticking Logic: A delay in physics updates or teleport logic (e.g. setting actor location) might be snapping the character.
- Network Latency (if multiplayer): Authority-side corrections can look like teleports when replicated improperly.
Bonus tip: If this is happening during specific animation events, check root motion or montages with movement logic baked in — they can override physics without you noticing.
In bigger teams, we often saw bugs like this get tagged somewhere (“look into wall clip in level 3”), then get lost in a sea of notes or missed in QA.
That’s partly why we built Asset Optics — it lets you leave per-asset comments and checklists right inside Unreal (like “collision needs debug here”, “teleport bug happens near stairs”), and syncs to a web dashboard so issues don’t vanish between builds or team members.
Not a fix for this bug per se, but it’s saved our sanity many times by giving us an audit trail for strange behaviors tied to specific meshes, levels, or Blueprints.
Hope this helps — let us know what ended up solving it. Would love to hear the root cause when you find it! 
Yes , it actually worked .The collision channels were incorrect . Thank you
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