Premiere Pro 26.5.2 fails to import DJI Osmo Pocket 4 Pro MP4 with two stereo audio streams — works in Premiere Pro 25

Issue

Adobe Premiere Pro 26.5.2 fails to import MP4 files recorded with the DJI Osmo Pocket 4 Pro when recording two stereo audio streams (4 audio channels total).

The error message is: “The importer reported a generic error.”

The exact same original MP4 file imports successfully in Premiere Pro 25, where both stereo audio streams are recognized and can be edited separately.

System

• macOS 14.6.1
• Apple Silicon Mac (M2 Max)
• Premiere Pro 26.5.2 (fails)
• Premiere Pro 25.x (works)
• Camera: DJI Osmo Pocket 4 Pro
• Microphone: DJI Mic 3, directly connected wirelessly

Media specifications

• Container: MP4
• Video: HEVC Main 10, 3840 × 2160, 29.97 fps
• Audio: 2 separate AAC-LC stereo streams, 48 kHz, approximately 317 kbps each
• Total audio channels: 4

Steps to reproduce

1. Record a video with DJI Osmo Pocket 4 Pro using the mode that stores two stereo audio streams in the MP4.
2. Import the original MP4 into Premiere Pro 26.5.2.
3. Premiere displays “The importer reported a generic error” and fails to import the file.
4. Import the same file into Premiere Pro 25.x.
5. The file imports successfully, with both stereo audio streams available.

Troubleshooting already performed

• Remuxed the MP4 with FFmpeg without re-encoding the video or audio — same error.
• Converted the audio to uncompressed PCM in a MOV container while copying the original video — same error.

Expected behavior

Premiere Pro 26.5.2 should import the file and expose both stereo audio streams, as Premiere Pro 25 does.

Actual behavior

Import fails with a generic importer error.

Please investigate this regression in Premiere Pro 26.5.2.

[Moved to Adobe Premiere by a moderator］