Firefly Video Error: "Too many reference items" appears even with a single frame (Model: Ray334)

Hello Adobe Team,

I have identified the exact cause of the issue on Adobe Firefly Video (generate/video) using the Ray334 model:

• Single Frame (First Frame only): Works without any issues.

• Adding Last Frame: As soon as a second reference frame (Last Frame) is added, the system immediately throws the error: "Too many reference items. Please remove some and try again." / "Çok fazla referans öğe var. Lütfen bazılarını kaldırıp tekrar deneyin."

   

Troubleshooting steps already taken:

1. Tested in Incognito Mode and cleared browser cache.

2. Cleared and re-uploaded both frames.

3. Tested with simple prompts.

The Ray334 model appears to fail/block when generating videos using both First and Last keyframes together.

Please investigate this issue with the Ray334 dual-frame reference feature. Thank you!