Default windows release 20.12.1 (on download page) is affected by: 813 please replace the installer or remove the link.

on Kdenlive page: https://kdenlive.org/en/download/ the linked Kdenlive installer has the qt5core with the issue of #813 (closed)

but seesm that there was no changes on packaging/craft-blueprints-kde@63292724 .. maybe patch not applied?

[MainWindow]
\t 1080=480
\th 1920=658
\sition=300
State=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
ToolBarsMovable=Disabled
\\.\\ISPLAY1 \\.\\ISPLAY2 Height 1080=530
\\.\\ISPLAY1 \\.\\ISPLAY2 Width 1920=789
\\XPosition=-19
\\YPosition=95
\\\\SPLAY1 \\\\SPLAY2 Height 1080=480
\\\\SPLAY1 \\\\SPLAY2 Width 1920=658
\\\\SPLAY1 \\\\SPLAY2 XPosition=609
\\\\SPLAY1 \\\\SPLAY2 YPosition=1380
\\eight 1080=900
\\idth 1920=1600

and this was the configuration file on 20.12.0 installer:

[MainWindow]
\s Height 1080=856
\s Width 1920=1528
\s XPosition=164
\s YPosition=1172
State=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
ToolBarsMovable=Disabled