If you open Lightroom Publishing Manager, the Video Format in Video section is not updated correctly when you switch between publish services.
See the video
1. Change the video format setting to H.264 in the Hard Drive publish service.
2. Switch to Flickr publish service while saving the previous change.
3. The video format setting is originial in case of Flickr.
4. Switch back to Hard Drive.
Actual result:
the video format setting changed to original in Hard Drive publish service
Expected result:
the video format setting stays H.264 as it was set previously