Finder not generating previews for Canon M-Raw Files

yes both are.

I also checked if my 5d Mark III has the same problem. But these compressed raw files previews are working. So it has to do with the mark IV and Catalina I guess. Are more people with this camera having this same issue?

Thanks for all the replies. I looked further into it.

The camera is a 5d Mark IV . According to this list https://support.apple.com/en-us/HT210191 Raw and compressed raw should be supported for this model (there is no asterisk or '3' (uncompressed raw format only) behind this model). So I would say this is not the problem.

Hi!

My camera is in this list . And the file format is .CR2 for both)

M-raw means medium raw. so This is a raw file with less megapixels (17 mp instead of 30mp)

This should only reduce the pixel count and thus file size, which can come in handy if you are not going to use the 30 megapixel.

I used this on previous versions of MacOS without any problems for previews.

Okay, but in previous versions of MacOS it was working, and this is quite a recent camera still...

I also have another problem which seems to be related to this one. Ejecting cards with Compressed raw files on it has trouble, I really have to force eject these cards. It looks like finder is maybe trying to still generate these preview files?

Also on my phone (iOS 12) I get a normal preview for the files, same when I right click for 'more info' the preview file is generated in the 'preview' tab.