pdf export problem

When I export my XLSX file to pdf I get some weird results. The characters of my text get totally mesed up.

This problem arrived when updating to 5.3. I tested this on another computer with the newest LibreOffice version, and I don’t experience this problem when testing with exactly the same documents.

Anyone an idea what is going on?

An example:
Example

I’m on Windows 7.

EDIT: I also reported a bug on this issue: https://bugs.documentfoundation.org/show_bug.cgi?id=107210