You'll have to ask the authors of Aurora.
I have also posted on the Aurora site but this doesn't answer the question about settings
There are no such settings in Lightroom. I don't know Aurora, so I cannot answer if there are settings in Aurora.
Did you ever figure it out. I just bought Aurora HDR and I am having the same issue. How did you resolve it?
Yes i did solve it
Instead of using "File" - "Plugin extras"
Select the 3 images
Right click on them and select "Export" - "Aurora HDR" - and either "Open source files" or "Edit copy with lightroom adjustments"
It appears there are 3 options to edit in Aurora but only the "Export" option works. Go figure.