# Non-cached Cached Motion Vector Map

**URL:** <https://forum.logik.tv/t/non-cached-cached-motion-vector-map/7398>\
**Category:** Flame Questions\
**Tags:** batch\
**Created:** [January 5, 2023, 11:56pm UTC](https://forum.logik.tv/t/non-cached-cached-motion-vector-map/7398 "2023-01-05T23:56:45Z")\
**Posts on this page:** 8\
**Page:** 1

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**Author:** ![onlycarlyouknow](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/onlycarlyouknow/32/2535_2.png) [@onlycarlyouknow](https://forum.logik.tv/u/onlycarlyouknow)\
**Post date:** [January 5, 2023, 11:56pm UTC](https://forum.logik.tv/t/non-cached-cached-motion-vector-map/7398/1 "2023-01-05T23:56:45Z")

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I have a not infrequent issue where I cache motion vectors for a shot in action and they are… not actually cached. As in every time I move a couple of frames away it has to recalculate the motion vectors. I can see the motion vectors on the batch shelf, but it has missing frames and odd blank frames. I’ve tried deleting it and re-caching but it still flakes out after a bit. My terminal is filled with this:  
action282 : Node “action282” is missing internal data  
Action: Error rendering live preview.

Has anyone else run into this and have some sort of clever fix? It’s really slowing me down.

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**Author:** ![GPM](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/gpm/32/4224_2.png) [@GPM](https://forum.logik.tv/u/GPM)\
**Post date:** [January 6, 2023, 12:12am UTC](https://forum.logik.tv/t/non-cached-cached-motion-vector-map/7398/2 "2023-01-06T00:12:42Z")

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I would love to know how to not have this. It’s why I don’t use vectors as much as I would like.  
@ALan ?

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**Author:** ![ALan](https://avatars.discourse-cdn.com/v4/letter/a/a87d85/32.png) [@ALan](https://forum.logik.tv/u/ALan)\
**Post date:** [January 6, 2023, 12:32am UTC](https://forum.logik.tv/t/non-cached-cached-motion-vector-map/7398/3 "2023-01-06T00:32:22Z")

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We always pre-render our Caches. Watch Ep2. of You’ve Been Sooth’d. But there are still several invalid-invalidation scenarios. I fully encourage you to report it to support.

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**Author:** ![cnoellert](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/cnoellert/32/559_2.png) [@cnoellert](https://forum.logik.tv/u/cnoellert)\
**Post date:** [January 6, 2023, 12:33am UTC](https://forum.logik.tv/t/non-cached-cached-motion-vector-map/7398/4 "2023-01-06T00:33:31Z")

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For what it’s worth, I’ve gotten the in habit of caching MVs in a separate action completely disconnected from the rest of the comp. Once cached they appear in the batch group reels, I’ll grab a copy and use them where they’re needed.

Don’t know if it helps….

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**Author:** ![onlycarlyouknow](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/onlycarlyouknow/32/2535_2.png) [@onlycarlyouknow](https://forum.logik.tv/u/onlycarlyouknow)\
**Post date:** [January 6, 2023, 1:19am UTC](https://forum.logik.tv/t/non-cached-cached-motion-vector-map/7398/5 "2023-01-06T01:19:48Z")

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Unless I’m confused Ep.2 looks like it’s about Teridici, but I’d love to see what you’re doing there.

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**Author:** ![ALan](https://avatars.discourse-cdn.com/v4/letter/a/a87d85/32.png) [@ALan](https://forum.logik.tv/u/ALan)\
**Post date:** [January 6, 2023, 1:43am UTC](https://forum.logik.tv/t/non-cached-cached-motion-vector-map/7398/6 "2023-01-06T01:43:19Z")

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You’re right… it is Ep.2 of the Sooth’d series.

[![](https://us1.discourse-cdn.com/flex020/uploads/thedepartmentofexternalservices/original/2X/d/d4aad60034c07d66686908ec6f77f07517f7aab0.jpeg "You've Been Sooth'd Ep2: Fuque Yeah!!! This is good.") ](https://www.youtube.com/watch?v=mVrCYI7na1s)

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**Author:** ![onlycarlyouknow](https://sea2.discourse-cdn.com/flex020/user_avatar/forum.logik.tv/onlycarlyouknow/32/2535_2.png) [@onlycarlyouknow](https://forum.logik.tv/u/onlycarlyouknow)\
**Post date:** [January 6, 2023, 6:23pm UTC](https://forum.logik.tv/t/non-cached-cached-motion-vector-map/7398/7 "2023-01-06T18:23:46Z")

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Haha, I just pulled up a fresh action, cached the vectors map, dropped it into my tracking action, hit F4….

Map Analysis  
Analysing motionVectors.

Oh well. 🤷‍♂️

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**Author:** ![ALan](https://avatars.discourse-cdn.com/v4/letter/a/a87d85/32.png) [@ALan](https://forum.logik.tv/u/ALan)\
**Post date:** [January 6, 2023, 6:36pm UTC](https://forum.logik.tv/t/non-cached-cached-motion-vector-map/7398/8 "2023-01-06T18:36:40Z")

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screen record it and send to support.
