[3.5.0] [ChromeOS] More Timeline Visual Bugs x2 (Daily Build fixed already?)

[Kr9ilf3b]

psa on the latest daily build I did 3 minutes of continuously dragging clips onto the timeline and haven't managed to trigger these bugs, so they may have already been fixed, but i am putting this info out here anyway. basically when dragging a clip onto a timeline there is supposed to be a preview, but 1 it sometimes does not show up while i am dragging, and 2 it sometimes does not go away after i stop dragging.

Bug 1 description
sometimes dragging a clip onto the timeline does not let me preview the clip as a clip on the timeline. I see the project file thumbnail next to my mouse and that's it. I don't see the clip until I release my mouse button.

Steps to reproduce the behavior: (does not 100% happen)

1. drag a project file onto the timeline
2. observe that there is no preview of the new clip

Expected behavior:
i get to see where the clip will be before i release the mouse button

Bug 2 description
sometimes dragging a clip onto timeline results in a "phantom clip" being placed on top of the newly created clip. you know when a "phantom clip" shows up when the new clip is not automatically selected when added to the timeline. this thing is probably the preview i was looking for under Bug 1, but for some reason it does not always disappear after I release my mouse button. the "phantom clip" is visually layered on top of the normal clip that has just been successfully created, and the "phantom clip" is completely pass-through to mouse clicks and never inherits keyframes from the normal clip, but is immobile, always shows up above normal clips and is therefore still a nuisance, and won't disappear until I try to drag another project file onto the timeline again.

Steps to reproduce the behavior:

1. drag a project file onto the timeline
2. observe that the new clip is not automatically selected
3. try to move the new clip by dragging or using a "Remove Gap" operation (both will reveal the next part)
4. observe that there is a normal clip underneath the "phantom clip" that functions normally as a clip. you cannot interact with the "phantom clip" at all but it is still there, always blocking its area on the track
5. dragging another project file onto the timeline should cause OpenShot to realise that "phantom clip" is broken and hence remove it

Expected behavior:
none of this should be happening, like can OpenShot please just be normal. I know 3.5.0 is trying to implement the new timeline system everywhere but it is still rough around the edges. I've found 3 bugs in 5 minutes without having done any editing work ;-;

here is a recording showing both bugs on 3.5.0 official

visual.2.webm

System Details:

• OpenShot Version: 3.5.0 broken but latest v3.5.0-dev-daily-15710-d8d577bf-48516e0b probably fixed
• Operating System / Distro: ChromeOS (145.0.7632.216) Linux (Debian GNU/Linux 12 (bookworm)) these are the latest versions

Log Files:
they look completely normal tbh, and the "phantom clip" is not a real functional clip anyway so i would not expect it to be recorded

Exception / Stacktrace:
this is not a crash

[Colorjet3]

Yes, these should be fixed in the latest dev daily build #15710.

Retest and see if you can reproduce your issues before we troubleshoot further.

[Kr9ilf3b]

could not reproduce in 15710 or the latest 15764 so might be fixed already, will wait for release