Created attachment 159848 [details]
The tooltip and pop-up described in the bug report.

SUMMARY

Some actions trigger a small floating box with explainer text to appear. For example, zooming the timeline results in a small rectangular box appearing in the lower right corner of the window. This popup says something along the lines of

```
Zoom Level: 10/21
Press **Shift** for more.
```

This tooltip is mostly harmless by itself, however if you press `Shift` while the tooltip is present, it replaced with a solid black pop-up with a "What's This?" type of explanation about the element. For example,

```
Slider to adjust the
zoom level.
```

This is problematic, because this "What's This?" pop-up steals the focus from the main window and eats the "Shift" keypress. As a result, doing some action quickly followed by a hotkey that starts with "Shift" results in this pop up appearing and the hotkey action not triggering.

STEPS TO REPRODUCE
1. Create enough tracks or resize the window so that the timeline can be scrolled vertically
2. Focus the Kdenlive window (click on the timeline)
3. Hover over the timeline, press Ctrl and mouse scroll to zoom into the timeline (the first tooltip shoul appear)
4. Release Ctrl and instead press Shift and mouse scroll (attempting to vertically scroll through the timeline tracks)

OBSERVED RESULT

A black box steals focus from the kdenlive window and no vertical scrolling occurs.

EXPECTED RESULT

The timeline is scrolled vertically as expected.

SOFTWARE/OS VERSIONS

Operating System: Manjaro Linux 
KDE Plasma Version: 5.27.5
KDE Frameworks Version: 5.106.0
Qt Version: 5.15.9
Kernel Version: 5.15.114-2-MANJARO (64-bit)
Graphics Platform: X11
Processors: 8 × Intel® Core™ i7-7700HQ CPU @ 2.80GHz
Memory: 15.5 GiB of RAM
Graphics Processor: Mesa Intel® HD Graphics 630
Manufacturer: Micro-Star International Co., Ltd.
Product Name: PE72 7RD
System Version: REV:1.0

ADDITIONAL INFORMATION

See attachment for screenshots.