webgl blit loop error

[naychrist]

Submission checklist

• I have confirmed the issue is present in the latest version of the rive Flutter package
• I have searched the documentation and forums and could not find an answer
• I have searched existing issues and this is not a duplicate

Description

hi there. I have had this pop up in a harmless way before but this time is preventing rendering. my use case is:

I have a single rive render texture painter that I want to draw rive render images and artboards inside. I am starting with just image meshes from render images creating with the flutter rive API

this works fine on macos desktop and local chrome debug but when deploying to a live site I get this in chrome (draft gl extensions enabled):

[.WebGL-0x134004ee800] GL_INVALID_OPERATION: glBlitFramebuffer: Blit feedback loop: the read and draw framebuffers are the same.

I am using the factory from the paint method to do the rendering and the image creation (same error was there when using rive.Factory for image creation)

I can't see any reason why this should work differently in this platform. any advice appreciated.

Reproduction steps / code

1. get global ref to factory from paint

globalRiveFactory = texture.renderer.riveFactory;

2. create render images elsewhere

    final data = await rootBundle.load(path);
    final bytes = data.buffer.asUint8List();
    rImg = await globalRiveFactory!.decodeImage(bytes);

3. render images inside paint loop when loaded

    for (var scanPainter in scanPainters) {
      canvas.drawImageMesh(
          scanPainter.rImg!,
          scanPainter.vertices!,
          uvs!,
          indices!,
          BlendMode.srcOver,
          1);
    }

4. it renders the first couple images ok despite errors but then every time I try and add another image it fails on the error - but only when deployed and viewed in chrome.

Upload your reproduction files / stack trace

No response

Source .riv / .rev file

No response

Screenshots / video

No response

Rive Flutter package version

^0.14.6

Flutter version

Flutter 3.41.8 • channel stable • https://github.com/flutter/flutter.git
Framework • revision 02085feb3f (13 days ago) • 2026-04-24 13:54:45 -0700
Engine • hash 7a53c052bc4b472cf780b199087e1368e4a9aa8c (revision 59aa584fdf) (22 days ago) • 2026-04-16 02:32:16.000Z
Tools • Dart 3.11.5 • DevTools 2.54.2

Device

chrome

OS version

macos 26.2

Additional context

No response