Hi @Ochies,
How is your flow created? Could you share a screenshot of your flow?
It seems that there is something wrong with your second part of Kritische_x0020_vernieuwing. From which action do you get the dynamic content?
I have made the following flow for testing. Please check it for a reference.
When an item is created, trigger the flow, then get current datetime. If the ticks of current time is equals to ticks of the startDate in the list, send me a mobile notification.
The code in the Condition is:
@equals(ticks(startOfDay(body('Current_time'))), ticks(startOfDay(triggerBody()?['StartDate'])))
Image for your reference:

Best regards,
Mabel