Rotating .tiff photo scan and saving it in ImageGlass causes 'could not load' in Darktable

As the title says. Any ideas on how to fix that? Aside form re-scanning every picture i rotated? Rotating it back to the original position and saving doesnt help.

Did the scanned .tiff before rotation load into Darktable? I’d check that it does before proceeding further. Just to make sure the scanner software tiff export isn’t the culprit.

If that isnt the case then check out ImageMagick

with a check of the documents and a little searching you should be able to find a script to batch convert. but ask here if you need the help.
Are you on linux, windows or mac?

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It did. Righclicking on the file on Windows and pressing “rotate left/right” fixes the issue. Still this is a strange behaviour.