[Bug Report] Body Mocap issues with Dollars MoCap after Unreal Engine 5 update

Bug Reports
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Game Version: Jenkins-LIVE_260212-UE5-677
Platform: Steam (Windows)
Mods: Removed

Hardware Specifications & Operating System:

  • OS: Microsoft Windows 11 Pro (Version 10.0.26200)

  • DirectX: DirectX 12

  • Driver: NVIDIA Studio Driver - 591.44

  • CPU: Intel(R) Core™ i5-14400F

  • RAM: 32.0 GB

  • GPU: NVIDIA GeForce RTX 4060 Ti (16GB GDDR6)

  • Storage: 1TB SSD / 1TB HDD

  • Display: Samsung C24FG7x (1080p @ 120Hz)

Steps to Reproduce:

  1. Open Dollars MoCap.

  2. Connect it to inZOI for body capture tracking.

  3. Observe the character’s movement in-game.

Details:
Hello, I have been testing the new update featuring the engine migration. I’ve encountered a significant issue regarding the motion capture features, which are essential for my gameplay and workflow.

I frequently use Dollars MoCap (a paid software) for both facial and body tracking to create content for my YouTube channel. Since the update to the new version of Unreal Engine 5, I’ve noticed the following:

  • Facial Capture: It still works relatively well.

  • Body Capture: It is currently broken. While the character attempts to mimic the movement, the animation is extremely stuttering/choppy. It feels like it’s skipping frame by frame; the capture doesn’t hold for even a second before jumping to the next pose.

In the previous version of the game, the capture was smooth and fluid. This feature is one of my favorites and is vital for my content creation, so I hope the team can look into the compatibility between the new engine build and external MoCap data.

Thank you very much for your hard work!

Best regards.

3 Likes
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Hi, Dollars MoCap developers here! Thank you for using our product and for the detailed report.

Regarding the issue you mentioned, please refer to the “Motion lags in Unreal” section on the following page, where the first solution may help resolve the issue,

We will also continue to monitor this issue on our end. Thank you again for taking the time to share this!

3 Likes
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“The solutions provided did not work. I have recorded a video of the bug for your review. Even after disabling GPU acceleration, the issue persists. Additionally, Dollar Mocap, NVIS, and Mono are no longer functioning. I’ve attached the screen recording below.”

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Hi, thank you for the feedback. About the new issue, it seems that more than one VMC sender is sending the mocap data. Please make sure you are running only one MONO. If this does not solve the issue, please let us know.

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Thank you for the suggestion. However, I have already confirmed that I am running only one MONO instance, and there are no other VMC senders active. The issue persists exactly as shown in the video.

As I’ve mentioned, this setup was completely fluid in the previous version of inZOI. The stuttering only started with the recent engine migration (UE5 build Jenkins-LIVE_260212).

Since I’ve already ruled out multiple instances, GPU acceleration, and protocol changes (EGAO/NVIS), it seems there is a deeper compatibility issue with how this specific version of inZOI handles MoCap data.

Is it possible for your team to test Dollars MoCap specifically with the latest inZOI update? I would be happy to provide any logs or additional info you need to help resolve this.

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Thank you for the explanation. So the video is about the original post, not a new issue. In this case, the solution in our FAQ is not helpful.

And actually we have tried reproducing the problem before we replied last week, but it seemed to be fine on our side. One suggestion we can make is to use the applications mentioned in inZOI’s motion capture manual to see whether the issue persists. We can narrow down the cause this way.

If you have any new findings or need any further assistance, please let us know.

1 Like