Finally! Today I managed to fix the problem. It’s a bit embarrassing. Because I feel that you already suggested this.
But when I used “Stockholm” as my timezone, the problem was there. Today I switched to Timezone “UTC+1” under “Manual compensations“*, the problem was gone!
I thought this would result in the same outcome, but no. Is it daylight saving time that mess upp something?
Anyway: it works!
Thank you very much for your support!
* My translation from Swedish