The problem was with handling RAW files if embedded JPEG orientation does not match RAW orientation. That does not occur in from-camera RAWs (with very few exceptions), but may occur if RAW was modified by other software (Nikon View NX in current case).
Fixed in 1.4.4-1191,
Fixed in 1.4.4-1191, available at: https://www.fastrawviewer.com/blog/FastRawViewer-1-4-4-release-candidate
The problem was with handling RAW files if embedded JPEG orientation does not match RAW orientation. That does not occur in from-camera RAWs (with very few exceptions), but may occur if RAW was modified by other software (Nikon View NX in current case).
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Alex Tutubalin/FastRawViewer team