# \[Critical\] Can't start a session because of validation error for "misallowed" objects

**URL:** <https://forums.unrealengine.com/t/critical-cant-start-a-session-because-of-validation-error-for-misallowed-objects/820029>\
**Category:** Issues and Bug Reporting\
**Tags:** fortnite-creative, unreal-editor-for-fortnite, bug-report, question, fortnite\
**Created:** [March 25, 2023, 5:54am UTC](https://forums.unrealengine.com/t/critical-cant-start-a-session-because-of-validation-error-for-misallowed-objects/820029 "2023-03-25T05:54:03Z")\
**Posts on this page:** 1\
**Showing post:** 7

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**Author:** ![HalcyonKnight96](https://d1ap1mz92jnks1.cloudfront.net/user_avatar/forums.unrealengine.com/halcyonknight96/32/924312_2.png) [@HalcyonKnight96](https://forums.unrealengine.com/u/HalcyonKnight96)\
**Post date:** [March 30, 2023, 12:21am UTC](https://forums.unrealengine.com/t/critical-cant-start-a-session-because-of-validation-error-for-misallowed-objects/820029/7 "2023-03-30T00:21:43Z")

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@here [When importing buildings directly from fortnite in flying man mode the project does not pass validation and does not start giving error messages - #12 by HalcyonKnight96](https://forums.unrealengine.com/t/when-importing-buildings-directly-from-fortnite-in-flying-man-mode-the-project-does-not-pass-validation-and-does-not-start-giving-error-messages/832301/12)

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