# Bug With Overlaps events and physics simulation **URL:** \ **Category:** World Creation\ **Tags:** unreal-engine, Physics, question\ **Created:** [September 23, 2015, 9:52am UTC](https://forums.unrealengine.com/t/bug-with-overlaps-events-and-physics-simulation/333132 "2015-09-23T09:52:06Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Nicobass](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Nicobass](https://forums.unrealengine.com/u/Nicobass)\ **Post date:** [September 23, 2015, 9:52am UTC](https://forums.unrealengine.com/t/bug-with-overlaps-events-and-physics-simulation/333132/1 "2015-09-23T09:52:06Z")
I 've noticed a problem in last hotfix 4.9.1 (everythings work well before update) who break all my pickup blueprint. It seems that begin/end overlaps are wrong and repeated if trigger is attached to a static mesh with physics simulation enabled, there’s no problems if physics disabled ![59835-0001.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/d/e/2de26f6b6cc05a4d44aba3ec443716c9b11a3422.jpeg) ![59836-0002.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/5/d/0/5d01db63c62098d2344bbb4f67374a067495863e.jpeg) ![59837-0003.jpg](https://d3kjluh73b9h9o.cloudfront.net/original/4X/d/a/6/da651e127c845fa9640e6b5debe78c6a4728064b.jpeg) ---
**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\ **Post date:** [September 23, 2015, 7:01pm UTC](https://forums.unrealengine.com/t/bug-with-overlaps-events-and-physics-simulation/333132/2 "2015-09-23T19:01:21Z")
HI Nicobass, Could you try this in a new project to see if issue still occurs? If it does, post that test project here for us to investigate further. ---
**Author:** ![Nicobass](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@Nicobass](https://forums.unrealengine.com/u/Nicobass)\ **Post date:** [September 23, 2015, 9:42pm UTC](https://forums.unrealengine.com/t/bug-with-overlaps-events-and-physics-simulation/333132/3 "2015-09-23T21:42:10Z")
problem is still there… > **[Dropbox - File Deleted](https://www.dropbox.com/s/pwog2zrpw0obic1/OverlapTest.rar?dl=0)** > > Dropbox is a free service that lets you bring your photos, docs, and videos anywhere and share them easily. Never email yourself a file again! ---
**Author:** ![TJ\_V](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/tj_v/32/1008648_2.png) [@TJ\_V](https://forums.unrealengine.com/u/TJ_V)\ **Post date:** [September 24, 2015, 3:46pm UTC](https://forums.unrealengine.com/t/bug-with-overlaps-events-and-physics-simulation/333132/4 "2015-09-24T15:46:12Z")
Thank you for test project. I have created JIRA UE-17865 and our developers will be investigating issue further. We will post here with updates as we have them. As a workaround, disabling ‘Auto Weld’ from Trigger will fix issue. Cheers, TJ ---
**Author:** ![skeleton60](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@skeleton60](https://forums.unrealengine.com/u/skeleton60)\ **Post date:** [November 5, 2015, 10:00am UTC](https://forums.unrealengine.com/t/bug-with-overlaps-events-and-physics-simulation/333132/5 "2015-11-05T10:00:47Z")
hey any news on UE-17865? by way, disabled ‘auto weld’ from trigger fix only begin overlap when overlaping trigger, but then end overlap happen if mesh move ---
**Author:** ![anonymous\_user\_33800a51](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_33800a51](https://forums.unrealengine.com/u/anonymous_user_33800a51)\ **Post date:** [November 5, 2015, 2:43pm UTC](https://forums.unrealengine.com/t/bug-with-overlaps-events-and-physics-simulation/333132/6 "2015-11-05T14:43:04Z")
Yep, it looks like somewhere between 4.9 and 4.9.1, issue was reopened. I’ll post here again when I see that another fix come through. Thanks! ---
**Author:** ![anonymous\_user\_e343b2ae](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_e343b2ae](https://forums.unrealengine.com/u/anonymous_user_e343b2ae)\ **Post date:** [April 30, 2019, 3:06pm UTC](https://forums.unrealengine.com/t/bug-with-overlaps-events-and-physics-simulation/333132/7 "2019-04-30T15:06:26Z")
Is this still a thing?.. Cause this is exactly my Problem atm I guess. ---
**Author:** ![anonymous\_user\_e343b2ae](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_e343b2ae](https://forums.unrealengine.com/u/anonymous_user_e343b2ae)\ **Post date:** [April 30, 2019, 4:11pm UTC](https://forums.unrealengine.com/t/bug-with-overlaps-events-and-physics-simulation/333132/8 "2019-04-30T16:11:30Z")
Ok I fixed it by adding a SceneNode between Mesh and TriggerVolume. ---
**Author:** ![anonymous\_user\_f025bc83](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_f025bc83](https://forums.unrealengine.com/u/anonymous_user_f025bc83)\ **Post date:** [November 4, 2019, 6:46pm UTC](https://forums.unrealengine.com/t/bug-with-overlaps-events-and-physics-simulation/333132/9 "2019-11-04T18:46:56Z")
problem is still occuring, it can be fixed by setting collision on child to queryOnly (no Physics).