# Render Engine options greyed out?

**URL:** <https://forums.chaos.com/t/render-engine-options-greyed-out/116747>\
**Category:** General\
**Created:** [October 13, 2023, 1:39pm UTC](https://forums.chaos.com/t/render-engine-options-greyed-out/116747 "2023-10-13T13:39:59Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![vanderloo](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/vanderloo/32/235198_2.png) [@vanderloo](https://forums.chaos.com/u/vanderloo)\
**Post date:** [October 13, 2023, 1:39pm UTC](https://forums.chaos.com/t/render-engine-options-greyed-out/116747/1 "2023-10-13T13:39:59Z")

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I’m trying to tweak my render settings but, all of the sudden I am unable to select any render Engine. I’m sure there is some override setting locking it from somewhere else but I can’t find it. How do I enable render engine settings? (They are currently greyed out)  
Thank You

 ![Render Engine.jpg](https://europe1.discourse-cdn.com/chaosprd/original/2X/a/a86d9fb363ed969d2a1c71a0ef8c8a9f20580599.jpeg)

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**Author:** ![Ana\_Lyubenova](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/ana_lyubenova/32/60928_2.png) [@Ana\_Lyubenova](https://forums.chaos.com/u/Ana_Lyubenova)\
**Post date:** [October 16, 2023, 7:55am UTC](https://forums.chaos.com/t/render-engine-options-greyed-out/116747/2 "2023-10-16T07:55:01Z")

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If a rendering or Light Gen is running, these settings are greyed out. Can you check that?

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<div class="post-metadata">

**Author:** ![vanderloo](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/vanderloo/32/235198_2.png) [@vanderloo](https://forums.chaos.com/u/vanderloo)\
**Post date:** [October 16, 2023, 9:05pm UTC](https://forums.chaos.com/t/render-engine-options-greyed-out/116747/3 "2023-10-16T21:05:03Z")

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There is nothing running and they are still unable to be selected or changed.

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**Author:** ![Ana\_Lyubenova](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/ana_lyubenova/32/60928_2.png) [@Ana\_Lyubenova](https://forums.chaos.com/u/Ana_Lyubenova)\
**Post date:** [October 17, 2023, 8:25pm UTC](https://forums.chaos.com/t/render-engine-options-greyed-out/116747/4 "2023-10-17T20:25:28Z")

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What happens if you restart Revit?  
These settings are locked only if there’s a rendering process going on.

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<div class="post-metadata">

**Author:** ![vanderloo](https://dub1.discourse-cdn.com/chaosprd/user_avatar/forums.chaos.com/vanderloo/32/235198_2.png) [@vanderloo](https://forums.chaos.com/u/vanderloo)\
**Post date:** [October 17, 2023, 11:57pm UTC](https://forums.chaos.com/t/render-engine-options-greyed-out/116747/5 "2023-10-17T23:57:19Z")

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That worked. Thank You Ana