Auto Reframe Frame‑Rate Selection Limits in Mixed‑Frame‑Rate Sequences

The goal is to understand how Premiere Pro Auto Reframe determines the output frame rate when a sequence contains clips of differing frame rates. The documented behavior for CC 2022 and later indicates that Auto Reframe preserves key visual elements, but the frame‑rate selection logic remains unclear and users report inconsistent results.

Constraints include the lack of explicit documentation on frame‑rate handling, potential variability across GPU acceleration settings, and the need to test without production credentials.

Key questions:

• Does Auto Reframe always set the output sequence frame rate to the highest source frame rate in mixed‑frame‑rate scenarios?
• Is there a documented or user‑accessible setting to preserve the original sequence frame rate when applying Auto Reframe?
• What factors (e.g., clip order, sequence complexity) influence the chosen frame rate during Auto Reframe?