Particles Pop Out of Existence In Render Not Viewport

[Chrissonator]

So, I have a setup that makes particles fade in and fade out, so they don't just pop in and out of existence. And they appear to do just that in the viewport, however, in the render, it seems like some of the particles just pop out of existence toward the end of their life span, and I'm not sure why.

[d4rk3lf]

So, how you expect us to examine the case without sending max file, or even preview, or even max screenshot of the flow ?

It's case by case scenario.. you have some examples in official files (the one named with UVW).
Give me some more info, and I'll gladly help bro.

[Chrissonator]

So, how you expect us  to examine the  case  without sending max file, or even preview, or even max screenshot of the flow ?

It's case by case scenario.. you have some examples in official files (the one named with UVW).
Give me some more info, and I'll gladly help bro.

Here is the particles in the viewport as their scale fades out:


Here is the particles in the finished comp shot popping out of existence before they fully scale down to 0:
https://youtu.be/zUZgK4wk5fo

I've uploaded the Max file, ignore the missing texture, that's for the geosphere which has a star texture map applied. Need Max 2025 to open it.

[Chrissonator]

One thing I did just notice is that they pop out of existence when viewing the particles with shading, but not when viewing as wireframe.

[d4rk3lf]

I've uploaded the Max file, ignore the missing texture, that's for the geosphere which has a star texture map applied. Need Max 2025 to open it.

Can you save it for Max 24... maybe even earlier? 

Thanks.

[Chrissonator]

I've uploaded the Max file, ignore the missing texture, that's for the geosphere which has a star texture map applied. Need Max 2025 to open it.

Can you save it for Max 24... maybe even earlier? 

Thanks.

2022 is the oldest I could save it.

[d4rk3lf]

I think you need to have mesh operator in the second event too.
You need mesh operator in every event you want it to be rendered.

[Chrissonator]

I think you need to have mesh operator in the second event too.
You need mesh operator in every  event  you want it to be rendered.

Okay, I'll give it a shot when I rerender the tyflow pass.

[Chrissonator]

I think you need to have mesh operator in the second event too.
You need mesh operator in every  event  you want it to be rendered.

They still popped out of existence before completely scaling down to 0.