Menu buttons do not show menus when clicked sometimes

[smabbott]

This tracker is for defects only! For feature requests, see our discussion forum.

OS and Version (please complete the following information):

• Operating System: Linux (Ubuntu 25.04)
• Shotcut Version: 25.11.2 via App Center (Snap)

Describe the bug
Some (all?) menu buttons do not appear unless the tool tip appears first.

Steps To Reproduce

1. Start Shotcut
2. Click on the timeline menu button
3. Nothing appears.
4. Move the cursor away
5. Hover the cursor over the menu and wait until the tool tip appears ("Timeline Menu")
6. Click on the menu button
7. menu appears

Expected behavior

1. Click on a menu button
2. menu appears

Screenshots

Clicking on button does not show menu.

Hover until tool tip appears…

…now clicking on the button shows the menu

[ddennedy]

This is a known bug with Qt on Wayland that has improved. I am having trouble to locate the other report. I did not realize a connection with the tooltip. That might be a clue as to how to remedy it.

[ddennedy]

Here is the other report:
https://forum.shotcut.org/t/popup-menus-timeline-playlist-jobs-not-working-on-wayland-linux/49407

Newer Qt versions have improved it if not completely, but they have introduced a much worse bug. I am waiting to see about Qt 6.10.1.

[ddennedy]

Workaround QT_QPA_PLATFORM=xcb shotcut

[ddennedy]

I did some testing of this today. I did not find a link with the tooltip. However, I found that is works perfectly fine in KDE on Wayland. I tested KDE on Ubuntu 24.04 and Fedora 42. I am not recommending you install KDE for this if you are using GNOME because I found that, for example, my GNOME appearance on Fedora 42 changed after doing that. :-( This is mostly a note to self when testing this again in the future to avoid confusion and not claim "fixed" when testing in KDE!

[smabbott]

Thanks! FWIW, the workaround works for me.

[ddennedy]

This is fixed for version 26.4 by upgrading Qt to version 6.10.3