Converting PDF to Power Point breaks links

Hi all, 

We use Adobe in Power Platform to create and fill PFDs. The PDFs have in total three links that are being displayed besides other text. Afterward we merge the PDFs into one big PDF. (you can see in the screenshot that the link is working)

From there, we convert the PDF to a PowerPoint. (in the second screenshot you can see that the link is gone)

Up until the last week, we have changed nothing so far with the workflows...but only one of the three links just doesn't work anymore. It's still marked in blue as a link, but when you look into the element you can see that the address is empty.

This came out of nowhere and doesn't really make sense to us. Any help is appreciated.

Thanks, Robert