https://bugs.kde.org/show_bug.cgi?id=435531

            Bug ID: 435531
           Summary: Slider value changes when hovering over
           Product: kdenlive
           Version: 21.03.80
          Platform: Archlinux Packages
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: User Interface
          Assignee: j...@kdenlive.org
          Reporter: k...@miniskipper.at
  Target Milestone: ---

Created attachment 137445
  --> https://bugs.kde.org/attachment.cgi?id=137445&action=edit
slider jumps to cursor without mouse click

SUMMARY
When hovering the mouse over a slider the value changes according to the mouse
position (as if the mouse button was pressed all the time). That makes it
impossible to navigate the UI without changing values.

Tested with different kdenlive versions (arch stable 20.12.3, arch unstable
21.03.80, appimage stable 20.12.3).

When I revert the package 
local/qt5-base 5.15.2+kde+r171-2 (qt qt5)
to the version
local/qt5-base 5.15.2-5 (qt qt5)
everything works as expected.

But sliders in other qt applications are fine.
I assume the effects slider is no standard qt widget(?) so I open the bug here.

Tried on different machines: laptop with Cinnamon, desktop with xfce, fresh
installed virtual machine with xfce (all Arch).

STEPS TO REPRODUCE
1. Arch: Install local/qt5-base 5.15.2+kde+r171-2 (qt qt5)
2. Move the mouse over any slider
3.

OBSERVED RESULT
Value of that slider instantly "jumps" to the mouse position.

EXPECTED RESULT
Value of the slider does not change when simply moving the mouse over it.


SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

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