22091468: Photos has issues playing certain videos that have been imported

[openradar-mirror]

Description

Summary:
Video was shot via a Canon 7D Mark II. Some videos import and play fine, and others will import and not play - but sometimes "jerk" one frame, almost as if it's attempting to play but cannot. Please see attached video.

Steps to Reproduce:
1.Shoot pictures and video on DSLR
2. Import pictures and video
3. Notice that some videos will not play.

Expected Results:
Video plays

Actual Results:
Neigh.

Version:
El Capitan beta 5, Photos 1.1 (320.8.0)

Notes:

Configuration:
El Capitan beta 5, Photos 1.1 (320.8.0)

Attachments:
'bug_report.mov' was successfully uploaded.

Product Version: (320.8.0)
Created: 2015-07-31 14:44:47.844410
Originated: 2015-07-31T00:00:00
Open Radar Link: http://www.openradar.me/22091468