# Event Hit fired only if simulate physics is true

**URL:** <https://forums.unrealengine.com/t/event-hit-fired-only-if-simulate-physics-is-true/334805>\
**Category:** World Creation\
**Tags:** event-hit, unreal-engine, Collision, question\
**Created:** [October 9, 2015, 8:48pm UTC](https://forums.unrealengine.com/t/event-hit-fired-only-if-simulate-physics-is-true/334805 "2015-10-09T20:48:06Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![stackmann0](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@stackmann0](https://forums.unrealengine.com/u/stackmann0)\
**Post date:** [October 9, 2015, 8:48pm UTC](https://forums.unrealengine.com/t/event-hit-fired-only-if-simulate-physics-is-true/334805/1 "2015-10-09T20:48:06Z")

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Hey guys,  
I want my player to collide with an obstacle…I enable the collision on the obstacle, set it to ‘BlockAll’ and enable recieve hit events …The problem is that EventHit event doesn’t fire. But if I enable simulate physics on the obstacle the event fire normally…

What’s wrong?