Probably best to remove this post and do it again in the Capture One 12 forum, not the Webinars and Tutorials forum - you are more likely to get answers.
And when you do, tell us more - like are you on Mac or Windows (and which version of MacOS or of Windows)? Has it worked OK in the past? Are you working in a session or a catalog? If you create a new session or catalog, does it still do it, or is it only a problem with one particular session or catalog?
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