Not sure if I understand your question, but
I assume you have created a folder connection to your QVD's in the data load editor.
You should also ensure that the user that you assigned to the Qlik Sense Scheduler Service (services.msc) has at least read rights to the folder where the QVD's are stored.
I have the same problem (i want to use QVDs created from QlikView server, for other analysis in QlikSense), did you solve it?
I cannot reach the server with IP address (10.x.x.xxx) by creating a new connection folder from QlikSense. I'm administrator in both machines.
The strange fact is that with Qlik Sense desktop runs quietly!!
I hope you can help me, thank you in advance.
Have a nice day