Hi Aschwin,
I hope you are well today and thank you for your question.
Could you please share me your site URL where it’s happening so that i can troubleshoot it?
Also to resolve the issue could you please try using the CSS solutions posted in the following topic?
https://colorlibsupport.com/t/difficulty-with-read-more-summary-at-the-end-of-a-new-post/
Best Regards,
Movin