Hey @Retired_mod , thanks for the response. 

My original question was not concerning how to configure instance profiles.  I was able to do that successfully. 

The problem is that when a cluster runs with an instance profile, the access mode is essential for the instance profile to take effect.

If the cluster runs with Access Mode "No isolation shared", then everything works.

However, if the cluster runs with "Shared" (which is the default for Delta Live Tables) then it does not work.  The instance profile does not take effect.

Does the problem make sense @Retired_mod ?