I'm using CorelDraw - currently 2018 in Windows 10 64bit, but I've been struggling to get Internet links to behave for a long time now.
I'm just going to publish some simple steps to reproduce some issues here for convenience and discussion, then I'll raise a support ticket...
This causes me a massive headache when I'm working on any leaflet with around 10 links or more.
I'd be interested to know if anybody else is being frustrated by this or has found a way around it.
This bug is still there for me too... My workaround now is to overlay my hyperlinks as the final step and immediately export a PDF without saving. I seem to be able to avoid the link corruption this way. Then I delete the links again before saving, given that I know they'll be different next time I open the document anyway. This is obviously a pain, but viable for me as I'm only producing a 2 page newsletter with a handful of links - obviously it's not going to be an option for everyone.