Rokoko Smartsuit hub disconnects under body-weight pressure (ground mocap)

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Hi all, I’m using a Rokoko Smartsuit Pro II (Glove-Ready) with 2 Smartgloves to record Brazilian Jiu-Jitsu (BJJ) ground techniques for a project, bringing clips into Blender. A lot of the capture happens with the practitioner lying on the floor, on their back.

Issue: when there’s body-weight pressure directly on the hub (worn in a back pocket), the connection to Rokoko Studio sometimes drops completely and the character freezes until I reboot the hub.

I already fixed a separate, more general WiFi interference problem (dedicated 5GHz channel, router settings) which helped a lot with overall jitter/packet loss, but this specific pressure-triggered drop still happens.

My best guess (not confirmed) is that body weight is holding the hub’s power button long enough to trigger Hotspot mode (5s hold) or a hard reset (10s+ hold), per Rokoko’s own docs about those thresholds. But it could also be something else: antenna shielding against the body/floor, a loose cable connector, firmware behavior under WiFi obstruction, etc.

Has anyone here done ground-contact or contact-sport motion capture (wrestling, martial arts, stunts, dance on the floor) with an IMU suit like this and run into something similar? Any fix you found — padding the hub, repositioning it, a firmware setting, a different mounting harness?

Posting here since I couldn’t find this specific issue discussed anywhere else. Happy to share clip data if useful. Thanks!

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Welcome to BA.

I very much doubt you will find an answer here.

The only person on here I know who has mentioned owning/using one was Ian Hubert.

I would suggest contacting rokoko directly, after all it’s their system.

Hope that helps

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Have a lot of experience with the Rokoko suit at work. You should never ever be putting weight on that nexus at the back- it’s a flimsy plastic shell that contains all of the electronics other than sensors. You are going to shatter it eventually. You’ll notice that there are no official Rokoko videos where the user is ever on their back. If you absolutely must, you need to cushion that as much as possible- I would recommend a large pile of blankets or a foam pit. A mattress might also work. We motion captured some falls once- forward, not backwards- but we did those onto a mattress.

Honestly, I’d switch to camera mocap if you’re going to do martial arts. The wires connecting sensors are thin and the connectors are extremely flimsy. We’ve had to repair a couple and we don’t do any kind of contact stuff.