I've been using Rider for a while now and have always been able to just open VS solutions and they work without configuration/just use whatever was configured in VS.
But now a large asp.net MVC application refuses to work.
ConfigurationManager.GetSection() returns the proper section when I run in VS2019, but returns null when run in Rider.
I have no idea where to even begin looking for a solution, since I know next to nothing about asp.net, I just need to run the project to test some changes in backend data processing made. Can anyone point me in the right direction?