Problems using Date/Time field as Dynamic Content filter

My Mautic version is: v4.4.3
My PHP version is: PHP 7.4.30
My Database type and version is: Ver 10.6.10-MariaDB

Hey guys, I have the following problem. In one of my campaigns, I send an email in which the contact can book a call. If they book within 48 hours they should be guided to a download page. If they are too late they’ll be guided to a thank you page.
Directly after sending the email I update a date/time custom field by setting it to “now”. For the landing page, I created two dynamic content pieces (download and thank you section) that I filter by CustomField IsGraterThan/IsLessThan -48 hours.

Unfortunately, the filter is not working properly.
I checked my testcontacts which I put in the campaign and the date/time was saved properly directly after sending the mail.
However, the filter is not working. It seems like it doesn’t matter which time horizon I choose. Whenever I choose GreaterThan -…hours/days/etc. as filter, the dynamic content piece gets chosen. If I choose LessThan … it never gets chosen. Does anybody know how to solve this problem?