we are using phpList for some time. Starting with version 3.3.x we encountered a problem with the CSV Download on the “Campaign click statistics” page. Thats why we sticked with an old version but needed / wanted to update to 3.3.3 because of GDPR stuff.
So, clicking on download CSV creates a CSV with some HTML code as only content: https://pastebin.com/VCVZrWkc (cant paste the code here and no idea how to do the code block )
instead of the actual content.
This worked fine < 3.3.x.