Animation Flickering / Missing Frames on Render

[lyart]

During animation playback on device the animation intermittently flickers or skips frames, resulting in an inconsistent visual experience. The issue appears to be related to the rendering update cycle, as some frames seem to be dropped or not render at all.

Attempted to build the scene using two different setups:

• A single parent RivePanel containing multiple child RiveWidgets
• Separate RivePanel + RiveWidget entities for each element

Also tried adjusting transform Z-order and adding separate Canvas components to control sorting, but the issue persisted in all configurations.

rive_issue.mp4

Issue occurs only on device.

Environment
Unity 6000.2.1f, Rive v0.3.7
Platform: iOS
Render Pipeline: URP

[damzobridge]

Thanks for the details. Would you be able to share a mini Unity project that reproduces this (along with the riv+rev), so we can debug? We haven't seen this before with iOS, so that would help us rule out other potential issues.

[lyart]

Hi,
I created a simplified test scene — and magically, everything works correctly there.
However, in the more complex game setup (with multiple loaded scenes, canvases and the camera located in another scene), it doesn’t work properly.

I’ve spent several days trying to find the cause, but without success.
Closing this issue for now, since I can’t reproduce it in a simple example.