Attach original file here.
Tracy .. If you turn off the highlighted "tick box" you should not get that pop up any longer.
Additionally, if you need to run the "Import Diagnostics" tool in the future you can simply RMB click the Imported geometry and select to run the diagnostics from there.
How does that enable healing operations - the very topic of the discussion?
J. Mather ... By disabling the Diagnostics Tool and using the RMB click method after the fact you get a different selection tool set that allows you to heal the faces that may or may not have faults ... This is the only way I know of to get around the posted information
As to how to "unlink" a feature to enable healing as the original poster had requested, I really have no idea. I have never encountered that message box before and am simply offering a potential solution from a different path as the issue at hand as I perceived it was to heal the faulty faces.
Retrieving data ...