4k video is freezing after export (playback freezing).

[Jeffrey34307766kr2n]

Updated to latest PP version. After exporting a small 4k video, the video (H264 drone video at 4k) freezes upon playback. Music still going, but video jumps to different points. Need this explained/solved ASAP, client waiting for this video. Thanks. 

[Ann Bens]

If you want help: post comp specs, Premiere version and build, MediaInfo info in Treeview on footage used, sequence settings and export settings.

https://mediaarea.net/en/MediaInfo