# \[4.8.3\]AddProceduralMeshComponent reverts to AddComponent

**URL:** <https://forums.unrealengine.com/t/4-8-3-addproceduralmeshcomponent-reverts-to-addcomponent/327699>\
**Category:** Blueprint\
**Tags:** unreal-engine, bug-report, Blueprint, question\
**Created:** [August 5, 2015, 5:56am UTC](https://forums.unrealengine.com/t/4-8-3-addproceduralmeshcomponent-reverts-to-addcomponent/327699 "2015-08-05T05:56:59Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![anonymous\_user\_cacd3de0](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_cacd3de0](https://forums.unrealengine.com/u/anonymous_user_cacd3de0)\
**Post date:** [August 5, 2015, 5:56am UTC](https://forums.unrealengine.com/t/4-8-3-addproceduralmeshcomponent-reverts-to-addcomponent/327699/1 "2015-08-05T05:56:59Z")

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1. Make a function that has a Add Procedural Mesh Component node.
2. duplicate function
3. open duplicate and delete the add procedural mesh component.
4. go back to original, it’s not add component and won’t compile.

I get this error:

Error Unknown template referenced by ‘Add Component  
Target is Actor’ for Add Component

I’ve spent about 6 hours and have hit bug after bug after bug.

Blueprints is broken.

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**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:** [August 5, 2015, 4:27pm UTC](https://forums.unrealengine.com/t/4-8-3-addproceduralmeshcomponent-reverts-to-addcomponent/327699/2 "2015-08-05T16:27:43Z")

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Hi sgehrman,

I was able to reproduce this issue and I’ve created JIRA UE-19677 in our system. Our developers will be investigating it further and we will post back here with additional questions or comments as we have them.

Cheers,

TJ