Thanks for confirming, @Lars_Nieuwenburg! In this case, could you please reach out to our technical support team and share the following information?
- Confirm what OS you are using, for example, Mac or Windows.
- If possible share the CSV files showing the differences
- Screencast showing any error or providing more visual details about the issue - Loom is a great app for video screencasts: https://www.useloom.com/
Let me know if there is anything else we can help with!