Created attachment 149596 [details]
Bug Report Informations

SUMMARY
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Interface buttons aren't toggling correctly once triggered with Wacom's Pen click first. Then, even with mouse clicks, its toggling stays unpredictable. The way to assure the button will toggle correctly is by clicking with mouse on the background and triggering the button toggle with mouse firstly.

STEPS TO REPRODUCE
1. Click on toggleable button firstly with Wacom's Pen click;
2. Try to untoggle the button with Wacom's Pen click (unsuccessfully);
3. Try to untoggle the button even with Mouse clicks.


OBSERVED RESULT

Interface buttons aren't toggling correctly once triggered with Wacom's Pen click first. Then, even with Mouse clicks, its toggling stays unpredictable. 
The way to assure the button will toggle correctly is by clicking with Mouse on the background and triggering the button toggle with mouse firstly.

EXPECTED RESULT

Button to toggle normally with the Mouse or Wacom's Pen, after a Wacom's Pen clicks it firstly.

SOFTWARE/OS VERSIONS
Windows: 10, v. 21H2 (19044.1706)
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION
Pen Display: Wacom One 13