Export

Bug: Exported MP4 files have no audio track, in Premiere Pro Beta only. Repro: Any sequence, any MP4 preset (Match Source, YouTube 1080p, others tested), exported either directly from Premiere or queued through Adobe Media Encoder — audio is dropped every time. This occurs across multiple different projects. Confirms it's MP4-specific: exporting the identical sequence to a QuickTime/.mov container (H.264 or ProRes) produces correct audio. Confirms it's Beta-specific: the same projects export audio correctly in the standard release version of Premiere. Already ruled out: reinstalling Premiere Beta, removing K-Lite codec pack, updating graphics drivers, restarting — none affected it.