Power Mesh Not Working In After Effects


I am doing a face replacement in Mocha Pro for After Effects. I did this several times and it worked beautifully. I open Mocha within After Effects, then I create a mesh and track it. I save it and go back to After Effects. I copy the Mocha Data from my tracked clip and then paste it to the reference frame which is the face that I need to apply to the clip. I then slick Render, and select Stabilize Warp. The first few times this worked exceptionally.

However, now…it no longer works. I go through the same process, but now it’s like the tack data for the power mesh is not being applied to the reference frame. It says it’s there…when I look and see where I select Render and Stabilize Warp. But then nothing happens. I am at a loss for what is wrong. Is there anyone here who could point me in the right direction?

If you’re not using Mocha Pro 8.0.1 (where we fixed this) and you have a trimmed clip on the timeline, the data can paste off the timeline. Please update to 8.0.1 to get rid of this inconvenient bug and let me know if that fixes your issue.


I have the exact same problem…it worked before but does not anymore. it is already updated to 8.0.1

Same issue. Very frustrating. Worked through all the tutorial steps. But Stabilize:Warp module is just not sticking to the track. Please help.
Mocha 8.0.3

Read the comment by Ikkyle and I have the same issue. If the clip is trimmed and brought into timeline the power mesh module just does not work. The segment has to be exported out as a self contained clip.

Please address this issue. It’s an unnecessary glitch in an otherwise extraordinary software.

Precomping the source and anything you are putting back into the source is the best workflow right now. Let me make sure we have a user story with @martinb this week.

Please see here for an explanation of what the current problem is:

We are looking into a fix, but there is also another feature coming soon which may help solve many of these problems.

“At present, the only way around this is to precomp your trimmed layer BEFORE you track.
We are looking at finding a way to avoid this automatically by detecting when the footage layer is a precomp, but we’re currently trying to find other solutions as well.”

That doesn’t work either. Nor does bringing in a rendered clip that has been trimmed. I’ve spent hours trying to get this program to work. Very frustrating…

If you can, send me your project and I will take a look:
martinb [at] borisfx.com

I just purchased Mocha pro and was following a Film Riot tutorial on how to use the Mesh Warp for a specific effect.

I have triple-checked and despite following the steps EXACTLY (down to the exact values and keyframes) Mocha Pro fails to track onto, in my case, a face.

I tracked the footage, then precomped the VFX asset I want to track onto the face, then copied the MochaPro effect from my footage and pasted it onto the Pre-Comp and it still doesn’t work, please help!

Did you try precomping the source footage before tracking, as stated above?

Yeah, it took a while but I eventually did that and it worked, thanks!

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This is still happening to me. On Mocha Pro 9.0 now and its still a problem? I just saw the reply from @martinb and am wondering if these are the steps we still have to take when working off a trimmed clip. Can you confirm? I literally just downloaded mocha pro 2022 today and ran into this issue right off the bat. Today is 12/5/21

Yes. Precomped workflow is best for trimmed clips. Precomp your trim, THEN do powermesh tracking for stabilize warp.
Alternatively, use the Insert PowerMesh warp method, which doesn’t require stabilising the plate.

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This is wild. Seems like a major flaw that everyone seems to have an issue with. But if this works I’ll give it a go. Am I tracking the new pre comp layer or am I tracking the original layer within the pre comp?

Not so much a flaw, as in a workflow limitation. You don’t get the same issue in hosts like Nuke or Fusion because precomping is not required. As After Effects crops the Precomp frames, the only workflow is to also precomp the source to avoid frame shifts.
There are other ways around this, such as offsetting the frames manually, but this is by far the easiest way to work.

But many people prefer the new Insert Warp method, because then you don’t have to do the stabilization part at all.

Oh gotcha. Is there a tutorial for that insert warp method? I can get the mesh warp to work on occasion but I honestly never remember what steps I took lol

I’ll be honest, I am doing the exact step you are suggesting to do above, pre comping the trimmed clip and then doing the mesh warp track on the pre comp and it still isn’t working for me.

In each of these you’ll see the workflow in various packages, but the Mocha workflow is the same, so it’s worth watching them even if you’re only working in AE:

We’re adding more as time goes on, but these will get you started.

Okay great! Thank you for all your help, really appreciate it. What’s annoying is that I feel like I know how to work with the mocha mesh warp tracker, but After Effects is the culprit. Is there any chance you will have someone do a tutorial on this workaround specifically? With the pre-comping? I’ve watched a few of the above videos and don’t recall anything addressing this specific issue. Which seems to be a big one with a lot of AE users. While there are only a few tutorials that vaguely touch on it, I see in the comments a lot of people are having the issue still. Myself included. Not sure where I am going wrong but I can never seem to get it to work, and when I do, I have no idea what I did to get there.