This document provides information on the list of known issues in the Adobe Media Encoder.

Quick Time files with legacy codecs to import as audio only

Issue: The ending of QuickTime 32 support will cause some QuickTime files with legacy codecs to import as audio-only.

Workaround: Transcode files to a supported codec and re-import.

Audio is out of sync

Issue: Audio is out of sync by several 100 samples in H.264, MPEG-2, MPEG4, when multiplexing audio and video streams.

Workaround: None, except encoding into a different format with uncompressed audio such as MXF.

With H.264, AAC audio is truncated at the end.

Issue: When you use H.264 on-the-fly muxing, AAC audio is truncated at the end.

Workaround: Use VBR 2-pass encode or use MPEG audio.

Encode Error

Issue: Encode error when DL-queued from Premium Pro and encoded into the matching QT ProRes video setting as the source.

Workaround: Check the "Import sequence natively" option.

Some of the Quick Time reference files are not imported.

Issue: Some Quick Time reference files can no longer be imported. 

Workaround: No workaround. 

Support for import/export of legacy 32-bit QuickTime media is discontinued. For more information, see 32-bit QuickTime support has ended.

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