Augmented Reality: Scenes MISSING via USDZ export in Reality Composer

Using Reality Composer [within Xcode]... I've built an .rcproject file with 25 scenes containing Behaviors w/Triggers + Actions to change scenes, one after another.

When exported as a .reality file, it does run successfully through all 25 scenes.

❓However... when exported as a .usdz file via "Export: Project" (not "Export: Current Scene"), it only runs the 1st scene, as though the rest of the scenes do not exist. The Trigger to change to the 2nd scene does nothing.

✅ Btw I do have "Enable USDZ export" checked (which is not on by default) in the Preferences for Reality Composer.

✨Thank you✨ I'd greatly appreciate any troubleshooting tips❗️