The bug from this thread was fixed by @brian. But it is back in this Beta version.
Steps:
- From an already running project, go to File > New and choose Project
- When prompted to Save the project, choose No
- In the new project, click on the New Generator button in the Timeline toolbar and add a Color clip.
- Click on the New Generator button again and add Color clip.
Since the clip on track V2 was the last one added, it is selected.
When clicking on the V1 clip, the clip on V2 is deselected and neither can be selected again.
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I did not reproduce it on v25.04.25 or local development copy. Are the first 2 steps required? I tried both with and without.
I reproduce it on v25.04.25, Windows 11, following all the steps. In addition, dragging one of the clips to the right is not detected. Playback stops at the end of the unmoved clip.
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OK, I did a bit more testing and found that it doesnāt really matter if you switch from an already running project to a new one. You can switch from a brand new projet to another new one.
Also, Iām experiencing this bug too when using File > Close to switch.
So here are the updated steps:
- Launch Shotcut
- Got to File > New > Project OR File > Close
- In the new project, click on the New Generator button in the Timeline toolbar and add a Color clip.
- Click on the New Generator button again and add a Color clip.
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In the original repport, the bug only occured when doing:
- Click the Open Other button in the main tool bar.
- Choose Color
- Choose Add to Timeline.
- Repeat to add a second clip.
If instead of choosing Add to Timeline you used Open then drag the Color clip manually, everything worked fine.
But like I said, that bug was fixed by @brian
And it is still fixed in v25.04.25 if you use the New Generator button from the main toolbar instead of the one in the Timeline toolbar.
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I reproduced it now and fixed it for release. A simple workaround is to click the Project tab on the player. When you click the Add to Timeline from Open Other, it switches the project tab, but not Timeline > New Generator. And File > Close is switching the player tab to Source.
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Hello and thank you for making this. 
I canāt see it mentioned here but thereās a pretty bad bug in QT 6.4.3 which crashes in any scaling other than 1x.
I am in Debian Linux x64 running the tar uncompressed shell script shotcut
in the terminal.
It also happens if my x11 window is another resolution than 96dpi and I try and force 1x scaling from the commandline QT_SCALE_FACTOR=1
as well. Opens fine in X11 96dpi.
Qt 6.4.3 is only used in the Linux portable, AppImage, and Snap. It is not upgraded to 6.8 like all the other builds for backwards compatibility reasons. I am not upgrading it now just for the problem you reported. You can use our Flatpak.
Just letting you know. Not to be a bother 
Also, so you know (scaling 1x), Iām having trouble opening 10 bit footage 1080p in both Prores HQ Prores LT also a 10 bit H264 4:2:2 file as well.
Files open fine in the, quite old now, debian packaged stable shotcut.
On the beta, this is with GPU effects on. With GPU effects off. The thumbnail is available but there is nothing in the main window. Nor does the timeline move. The play icon turns to a pause and back again but a blank window.
Wondering if thereās something Iām not seeing or doing right. 
Also, still using the extracted tar file in Debian.
10-bit is working fine. What you describe sounds like audio is not working. Check Settings > Player > Audio API and then the end of View > Application Log after trying to open something. For example,
[Error ] [consumer sdl2_audio] Failed to initialize SDL: Audio target āpipewireā not available
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Thank you for that Dan. It was the audio which was configured for pulse and I use alsa. Thanks again!
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