Playhead suddenly jumps to start when dragging video track

Linux Mint 21.3 Cinnamon 6.0.4, Kernel 5.15.0-125-generic.
Shotcut version 24.11.17, Flatpak (Flathub).

I am editing several video tracks in Shotcut. In each track, there is a clapperboard event about at 10 minutes moment, so I might accurately sync the tracks by dragging them in the timeline. So I adjust the playhead to the 10 min position. But when I start dragging , the timeline suddenly jumps to the 0:00 time position, instead of allowing me to stay at the desired time position. Why is this happening and how to accurately sync the tracks?

Update and resolved: Actually the problem was with the Flatpak version. When I installed the System package, getting the version 22.01.30, it did not have the issue.

But this raised a new question: How can I get the newest 24 version? The Linux Mint does not recognize the “snap install shotcut --classic” command, which was presented in the Shotcut - Download page. When I tried the “sudo apt install shotcut” command, I get confirmation that “shotcut is already the newest version (22.01.30+ds-1)”.

How to get a working V24 version to my LM PC?

Resolved: from the Shotcut Download page, I downloaded the portable TAR version of Shotcut. Using it, I got new version 24.11.17 OK and it did not have the same problem as the Flatpak version.

BTW, I have also faced similar weird bugs in some other Flatpak applications in Mint (Audacity and Musescore) and have got workaround by using the portable versions of them. So, Shotcut Flatpak version seems to be like the same. Any comments?

I do not reproduce the issue in Flatpak 24.11 as best as I could understand it. It is possible that an option in Settings > Timeline > Scrolling is a factor on your system.

Or maybe you turned on this button Scrub While Dragging in the timeline toolbar:

image

P.S. Please try to not call different things with the same word “track” as that is confusing. Try using the common word “clip.”

Thanks for your quick response. Yes, the Scrub while dragging option was turned on. When I turned it off, my problem faded away and the playhead did not jump anymore.

The Scrubbing option was one that I did not understand and it confused me as I told.

1 Like

OK, when you turn that on, then when you drag a clip in the timeline, the play head sticks to the beginning of the clip. Then, as that clip’s position changes (dragging) the player seeks to follow the play head. This is what “Scrub” means here; it is an English word for frequent seeking. Next, Timeline automatically scrolls as the player current time changes (except when Settings > Timeline > Scrolling = No).