Render animation - curves missing on several frames

Hey!

I’am rendering animation, and sometimes some curves are missing (about 15 frames with this issue for 250 total).

Curves exist in viewport render, render properly if rendering single image, only missing when rendering animation (to png).

It looks like curves are randomly “not rendering” but - when rendering again, they are the same curves on the same frames.

Have you ever encountered such a problem?

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Hum, There might be something wrong in the way they are rigged.
It could be a cyclic dependency, like an object that dictates how the curve should be shaped, but that object is parented to the curve.

Sadly the only way to be sure is to hunt down the issue, you can start by removing all the unrelated objects to simplify the problem, then desactivate some fuctionality or remove more objects until the problem disapear , once you find the culprit the solution in general is easier !

Good hunt !

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It may not be that simple.

I found something similar - Similar Bug

Not many commends, but it is still marked as “open”.

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outch well done !

Did you tried to render without persistent data and motion blur ?
at least , removing persistent data won’t impact quality, only a bit more render time…

Yup - rendering without persistent data - everything works perfectly fine.

+10s for each frame so… not worth digging deeper ;D

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