Attempting to read a layer via a Feature Service on Portal. As I am the owner I have the relevant permissions to access the layer, and it also has relevant editing permissions. This is confirmed by being able to edit the layer in Portal itself.
However, when attempting to read in the layer I am met with the error in the question title. I can successfully connect to our portal, and even the Feature Service using the reader - it just fails when attempting to select the layer. See below:
I should add that the log does not provide any useful information.
Appreciate that this could be rooted in Portal configuration but any guidance much appreciated!