# Cook fails on Push, but works with Launch

**URL:** <https://forums.unrealengine.com/t/cook-fails-on-push-but-works-with-launch/2548214>\
**Category:** Issues and Bug Reporting\
**Tags:** closed, fortnite-creative, unreal-editor-for-fortnite, bug-report, fortnite\
**Created:** [June 9, 2025, 12:54pm UTC](https://forums.unrealengine.com/t/cook-fails-on-push-but-works-with-launch/2548214 "2025-06-09T12:54:41Z")\
**Posts on this page:** 1\
**Showing post:** 12

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**Author:** ![Jimbohalo10](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/jimbohalo10/32/961440_2.png) [@Jimbohalo10](https://forums.unrealengine.com/u/Jimbohalo10)\
**Post date:** [June 16, 2025, 3:09pm UTC](https://forums.unrealengine.com/t/cook-fails-on-push-but-works-with-launch/2548214/12 "2025-06-16T15:09:33Z")

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hi @Dee_Kay_Bee ,  
Whilst looking for reasons This post may interest you  
[[Major] v34.30 introduced a new editor validation error and when fixed it results in a cook validation error - General / Issues and Bug Reporting - Epic Developer Community Forums](https://forums.unrealengine.com/t/major-v34-30-introduced-a-new-editor-validation-error-and-when-fixed-it-results-in-a-cook-validation-error/2446730/5)

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