We have noticed rare cases of visual issues on files such as frame blending/interlacing problems. These visual glitches seem to occur if when adding the voice over to the edit that it is not in an interlaced project/timeline. Please ensure when working on the edit and then exporting it that it always in an interlaced sequence to prevent these visual glitches.
They are also known to rarely occur when exporting via Adobe Premiere on MacOS. Any visual errors that occur are potentially caused by the second field being replaced with random frames during the export or due to video corruption within the legal video levels.
We highly recommend that all edits are checked visually before sending to Clearcast as current QC systems are unable to detect certain visual glitches and a reclock/redelivery may be required if a visual glitch is flagged up down the line, especially via the stations.
It is also advisable to clear all media cache after updating Adobe Premiere to a new version or after updating your OS.