Application Freezes When Selecting Video While Under 8 Seconds Remain of Current Video

Issue:

When viewing videos in the library, if you watch a video that is longer than 8 seconds, and you switch to a new video while you're in the last 8 seconds (including if the video has ended or is paused), then the application will freeze for about 5 seconds before the new video is ready to play.

Environment:

• Lightroom Classic Version Number: 13.4 Release
• OS Version Number: Windows 11 Pro 10.0.22631 Build 22631

Repro rate: 100%

Steps to reproduce:

1. Create a video that's shorter than 8 seconds (call it A)
2. Create a video longer than 8 seconds (say 20 seconds) (call it B)
3. Play A then play B
4. Observe there is no freeze
5. Play B then play A
6. Observe the freeze
7. Play B for fewer than 12 seconds then play A (with or without pausing)
8. Observe there is no freeze
9. Play B for more than 12 seconds then play A (with or without pausing)
10. Observe the freeze

Expected result: smooth switching regardless of position in current video

Actual result: application freeze dependent on position in current video