This is QIDIStudio V2.00.03.54, which keeps its code synchronized with BambuStudio (thanks to @bambulab). Based on this, some features have been adjusted and known bugs have been fixed.
On newer versions of Ubuntu (e.g., Ubuntu 24), the software may crash when connecting to a printer on the device page. You can try the following three methods to temporarily work around this issue.
Configure WEBVIEW before launching the software.
Use the following command to attempt opening the software:
WEBKIT_DISABLE_COMPOSITING_MODE=0 WEBKIT_DISABLE_DMABUF_RENDERER=0 ./QIDIStudio_2.00.03.54_Ubuntu24.AppImage
If the first method doesn't work, you can manually add port "7125" when adding a device.
The downside of this approach is that Fluidd cannot be opened from the device page, but it ensures the software does not crash after sending or starting a print job.
If all the above methods fail, you will need to manually export the G-code file, then open the corresponding device's Fluidd in a browser.
In the task list, select "Upload File" and then execute the print operation. See the example below.