# Local Array of Wildcards in Macro won't change to type

**URL:** <https://forums.unrealengine.com/t/local-array-of-wildcards-in-macro-wont-change-to-type/383820>\
**Category:** Blueprint\
**Tags:** macro, compiler-error, unreal-engine, bug-report, question, Blueprint\
**Created:** [February 3, 2017, 1:45pm UTC](https://forums.unrealengine.com/t/local-array-of-wildcards-in-macro-wont-change-to-type/383820 "2017-02-03T13:45:28Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![JBroderick](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@JBroderick](https://forums.unrealengine.com/u/JBroderick)\
**Post date:** [February 3, 2017, 1:45pm UTC](https://forums.unrealengine.com/t/local-array-of-wildcards-in-macro-wont-change-to-type/383820/1 "2017-02-03T13:45:28Z")

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Hi there, I’m having an issue with trying to get a local array of wildcards to switch into the data type I require within a Macro. I’m not sure if this a bug or if I’m doing something wrong but putting it here just incase, It won’t let me compile any blueprints when I attempt to use this, essentially all I’m trying to is set an array of material instances for use inside this macro, if this is a bug are there any possible workarounds I can do inside the Macro to get this working?

Thanks. 🙂

 ![124786-capture23.png](https://d3kjluh73b9h9o.cloudfront.net/original/4X/4/a/7/4a7de20f1df342111e07b8394343c02f9df925c5.png)

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**Author:** ![anonymous\_user\_e729f54e](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@anonymous\_user\_e729f54e](https://forums.unrealengine.com/u/anonymous_user_e729f54e)\
**Post date:** [February 3, 2017, 2:43pm UTC](https://forums.unrealengine.com/t/local-array-of-wildcards-in-macro-wont-change-to-type/383820/2 "2017-02-03T14:43:20Z")

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Hello JBroderick,

After doing some digging I found that this appears to be a known issue. I have provided a link to the public tracker. Please feel free to use the link provided for future updates.

Link: [Unreal Engine Issues and Bug Tracker (UE-21739)](https://issues.unrealengine.com/issue/UE-21739)

Make it a great day

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**Author:** ![JBroderick](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@JBroderick](https://forums.unrealengine.com/u/JBroderick)\
**Post date:** [February 3, 2017, 2:59pm UTC](https://forums.unrealengine.com/t/local-array-of-wildcards-in-macro-wont-change-to-type/383820/3 "2017-02-03T14:59:26Z")

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This isn’t in a nested Macro however, but thanks for the clarification. 🙂

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**Author:** ![shaq\_mobile](https://d3kjluh73b9h9o.cloudfront.net/original/4X/2/8/5/28502927f1d97ba1051b3b47ccfe17233bf41ef0.png) [@shaq\_mobile](https://forums.unrealengine.com/u/shaq_mobile)\
**Post date:** [February 27, 2017, 7:53am UTC](https://forums.unrealengine.com/t/local-array-of-wildcards-in-macro-wont-change-to-type/383820/4 "2017-02-27T07:53:22Z")

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just ran into this…