I believe this is the result of the change to OmniSharp. In the preview extension, the EditorServices log no longer contains the json that is being passed around, just that a message is being passed. The legacy version however still contains the json.

Preview version:
image

Legacy version:
image

Was it intentional to remove these messages from the EditorServices log? Or was this inadvertent? When originally working out the code for Command Explorer, I made heavy use of the Diagnostic logging to ensure the messages were coming back as I expected them.

And the even bigger question: regardless of if the removal was intentional or not, are there plans to add such a level of logging back?