# Adding another Blueprint Interface "crashes" UE5.0.3

**URL:** <https://forums.unrealengine.com/t/adding-another-blueprint-interface-crashes-ue5-0-3/696654>\
**Category:** Blueprint\
**Tags:** Scripting, question\
**Created:** [November 22, 2022, 11:03am UTC](https://forums.unrealengine.com/t/adding-another-blueprint-interface-crashes-ue5-0-3/696654 "2022-11-22T11:03:12Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![crEA-tEch](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/crea-tech/32/620036_2.png) [@crEA-tEch](https://forums.unrealengine.com/u/crEA-tEch)\
**Post date:** [November 22, 2022, 11:03am UTC](https://forums.unrealengine.com/t/adding-another-blueprint-interface-crashes-ue5-0-3/696654/1 "2022-11-22T11:03:13Z")

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Hello there.

I’m having an odd problem, whenever I add another blueprint interface to a blueprint actor I get the following problem: The nodes disappear and the node lines start flashing, I can’t edit any of the code. When I try and run the game in editor it tells me the blueprint has compiler errors…

This happens no matter what order I add the blueprint interfaces.

[![](https://d3kjluh73b9h9o.cloudfront.net/original/4X/e/e/d/eedfbc636680c5c7cdffc37ea9e8bd4d9eddb55a.jpeg "Blueprint interface flashing issue") ](https://www.youtube.com/watch?v=bp5UE01rDXI)

Has anyone ever come across this issue? Is it a bug?

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**Author:** ![3dRaven](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/3draven/32/906552_2.png) [@3dRaven](https://forums.unrealengine.com/u/3dRaven)\
**Post date:** [November 22, 2022, 11:17am UTC](https://forums.unrealengine.com/t/adding-another-blueprint-interface-crashes-ue5-0-3/696654/2 "2022-11-22T11:17:13Z")

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Do you have a circular dependency loop in any of the BP interfaces?  
It seems to be going into a feedback loop once both are added.

Try creating a fresh empty interface and see if it’s the number of interfaces or the specific combination of these two.

Which version of the engine are you on?

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**Author:** ![crEA-tEch](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/crea-tech/32/620036_2.png) [@crEA-tEch](https://forums.unrealengine.com/u/crEA-tEch)\
**Post date:** [November 22, 2022, 11:30am UTC](https://forums.unrealengine.com/t/adding-another-blueprint-interface-crashes-ue5-0-3/696654/3 "2022-11-22T11:30:07Z")

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I’ve got 5.0.3 (I’m just installing 5.1 to try)

I can’t see any circular loops?

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/8/9/7/897b75dc67f2efe572a5b7788aa1df5a96e68b21.png)  
 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/0/7/1/071ea50b20b61712dc6a4347f6dfd5facb873607.png)

Created a fresh interface with the same interface as BPI\_Shootable, it did not appear to show any errors 😕

 ![image](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/5/f/25f75fdd373271ec4b4addda18768a6184bebf02.png)

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<div class="post-metadata">

**Author:** ![crEA-tEch](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/crea-tech/32/620036_2.png) [@crEA-tEch](https://forums.unrealengine.com/u/crEA-tEch)\
**Post date:** [November 22, 2022, 11:53am UTC](https://forums.unrealengine.com/t/adding-another-blueprint-interface-crashes-ue5-0-3/696654/4 "2022-11-22T11:53:39Z")

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Thanks @3dRaven

It must have been something to do with me “duplicating” the BPI\_Interact to create the BPI\_Shootable. Created a BPI\_Shootable from scratch works 🙂 🙂 🙂

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**Author:** ![alffromspace](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@alffromspace](https://forums.unrealengine.com/u/alffromspace)\
**Post date:** [May 26, 2026, 1:52am UTC](https://forums.unrealengine.com/t/adding-another-blueprint-interface-crashes-ue5-0-3/696654/5 "2026-05-26T01:52:08Z")

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I am experiencing the same issue with the same cause in UE 5.5.4. Creating a new interface from scratch also fixed this issue. Not sure if this is fixed in a newer version.