0.97.1: jpg-Files are blurred in preview [Solved]

[ftomasch]

Hello!
In the preview, the thumbnails of some file formats, such as jpg, are displayed blurred. The size of the preview images is set to 800 pixels, the quality to lossless. In CR2, Canon's raw format, the thumbnails are displayed sharply.
This error did not occur in older versions. What can I do to make the preview images sharp again?
Best regards
ftomasch
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XnView: MP 0.97.1 64 bit
OS: Windows 10 64bit

[ftomasch]

I found the solution!
In thumbnail menu, "use embedded Thumbnail" must be deactivated