I just updated RoboHelp 2019 to the latest version (14.0.8) and now I cannot open any of the projects I was working on with a version of RoboHelp 2019 I installed in February 2019 and I had just been working on prior to doing the update.
When I open the project it shows a message that it is "updating files", and then it shows "reading files" but it never finishes. I've waited half an hour and it doesn't do anything. I clic dismiss and the project is not opened.
The issue is that there are some hyperlinks in project which are starting with slash (/). RH is failing to parse them while opening the project. Please remove these slash from href and project will start opening in RH. You can continue working on your project then.
For your project shared with us, I have fixed this and shared the project with you over email.
Hopefully you will be unblocked for now. We will fix this issue in Update 9.
It's difficult to know what to suggest as in theory this is a fixed issue. In your case there must be something more to it.
Can you share the project? If you can, then see the Contact page on my site and send the project as instructed there. Do make sure you include a link to this thread and please do not email the project direct. I will take a look to see if I can spot anything.
If you cannot share it, then there are two options.
Try Adobe support. Either look up the phone number where you are or email firstname.lastname@example.org.