Created attachment 166204 [details]
Example file

The UI isn't locked, or at least not under Linux with gtk3 or gen, while the preview plays so you aren't held up changing the value to something else while the preview is playing or held up moving into another widget

(In reply to Caolán McNamara from comment #2)
> The UI isn't locked, or at least not under Linux with gtk3 or gen, while the
> preview plays so you aren't held up changing the value to something else
> while the preview is playing or held up moving into another widget

On Windows the preview restarts on every attempt to change the duration value and is 'blocking' input .. but lets wait for a conformation of someone else

Confirmed on Windows and Linux (gtk3, gen, kf5)

Version: 7.3.0.0.alpha0+ (x64) / LibreOffice Community
Build ID: 18771471f75685a6d3838a22d16dcff5c398e652
CPU threads: 2; OS: Windows 10.0 Build 19042; UI render: Skia/Raster; VCL: win
Locale: fi-FI (fi_FI); UI: en-US
Calc: threaded Jumbo

Arch Linux 64-bit
Version: 7.3.0.0.alpha0+ / LibreOffice Community
Build ID: 4b41880be6894aaa2d2392554e858631278ba320
CPU threads: 8; OS: Linux 5.13; UI render: default; VCL: kf5 (cairo+xcb)
Locale: fi-FI (fi_FI.UTF-8); UI: en-US
Calc: threaded
Built on 13 August 2021

I am not sure to have clearly understood this bug.
I don't find a bug with the scrollbar and the preview on the main page.
But the view with the "slide show" option doesn't work well.

Created attachment 188611 [details]
slide-show-bug

Problem with the slide show:

Version: 7.1.0.0.alpha1+ (x64)
Build ID: 738bcf5e9a8c443d60c29c3a8068e8c16c72638a
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: fr-FR (fr_FR); UI: en-US
Calc: CL

Version: 7.2.0.0.alpha1+ (x64) / LibreOffice Community
Build ID: ff2ba77f22b2e96f96f5537aec1705956b47583d
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: fr-FR (fr_FR); UI: en-US
Calc: CL

Version: 7.2.8.0.0+ (x64) / LibreOffice Community
Build ID: ffa09959edd087794b1f2fe6b9b6faac484ef74b
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: fr-FR (fr_FR); UI: en-US
Calc: CL

Version: 7.3.0.0.alpha1+ (x64) / LibreOffice Community
Build ID: 229123ccc6f90ebf66b3e659bebbd53f8a9bdd3a
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: fr-FR (fr_FR); UI: en-US
Calc: CL

Version: 7.3.8.0.0+ (x64) / LibreOffice Community
Build ID: e1ad83ddb2f39419fb5d7c69eba51e2b9f49c788
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: fr-FR (fr_FR); UI: en-US
Calc: CL

Version: 7.4.0.0.alpha1+ (x64) / LibreOffice Community
Build ID: c94961c6869c34b3874d21cfaa5ec1488609acfe
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: fr-FR (fr_FR); UI: en-US
Calc: CL

Version: 7.4.8.0.0+ (x64) / LibreOffice Community
Build ID: f8ba7c6f77497e2dc7bfef8378511e2074ce01f9
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: fr-FR (fr_FR); UI: en-US
Calc: CL

Version: 7.5.0.1.0+ (X86_64) / LibreOffice Community
Build ID: ced8585bcb92aa58ca3e24197ff38fb82cc8a703
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: fr-FR (fr_FR); UI: en-US
Calc: CL threaded

Version: 7.6.0.0.beta1+ (X86_64) / LibreOffice Community
Build ID: 1b5cee822e0bc15ddbdfc86926678ca35ab3e082
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: Skia/Raster; VCL: win
Locale: fr-FR (fr_FR); UI: en-US
Calc: CL threaded

Version: 24.2.0.0.alpha0+ (X86_64) / LibreOffice Community
Build ID: 77fca616e0bd79e0b405fd0b3543cf8e94e15df3
CPU threads: 4; OS: Windows 10.0 Build 19045; UI render: default; VCL: win
Locale: fr-FR (fr_FR); UI: fr-FR
Calc: CL threaded

Dear Telesto,

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