# Batch FX - elements dissapear when extending BFX segment into the heads

**URL:** <https://forum.logik.tv/t/batch-fx-elements-dissapear-when-extending-bfx-segment-into-the-heads/12154>\
**Category:** Flame Questions\
**Tags:** action, batch\
**Created:** [February 3, 2025, 3:31pm UTC](https://forum.logik.tv/t/batch-fx-elements-dissapear-when-extending-bfx-segment-into-the-heads/12154 "2025-02-03T15:31:27Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![andrew\_heropost](https://avatars.discourse-cdn.com/v4/letter/a/7ab992/32.png) [@andrew\_heropost](https://forum.logik.tv/u/andrew_heropost)\
**Post date:** [February 3, 2025, 3:31pm UTC](https://forum.logik.tv/t/batch-fx-elements-dissapear-when-extending-bfx-segment-into-the-heads/12154/1 "2025-02-03T15:31:27Z")

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Hi everyone.  
I have a BFX segment on the timeline. I need to extend it into the heads of the shot. I move the start of the shot back 12 frames into the handles and some of the elements in the scene disappear. They come back on when I reach the original start frame. I have the media set to Repeat on First and Last and extended the bar on the timing menu in BFX back the 12 frames.  
Is this a common problem?

Thanks,  
Andrew

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<div class="post-metadata">

**Author:** ![andrew\_heropost](https://avatars.discourse-cdn.com/v4/letter/a/7ab992/32.png) [@andrew\_heropost](https://forum.logik.tv/u/andrew_heropost)\
**Post date:** [February 3, 2025, 9:19pm UTC](https://forum.logik.tv/t/batch-fx-elements-dissapear-when-extending-bfx-segment-into-the-heads/12154/2 "2025-02-03T21:19:48Z")

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This turned out to be a keyframe in the priority editor set at frame one. When I moved the start point back into the heads of the shot, for some reason priority changed. I copied and pasted the keyframe to the new frame 1 and that fixed it.