Originally Posted by
CliffordK
From the OP's album:
https://www.bikeforums.net/g/album/26616744
The inside has a similar profile to the outside.
So, it is quite possible that the issue could be on either side of the hub and locknut or the skewer. (emphasis added)
As I mentioned, sitting the fork on the hub without the skewer will give a better view of how well the axle is seating in the notch..
We already know that it's not the skewer because the shop tested and confirmed that, and looking at the photo, we can see that the axle isn't pocketing properly even without a skewer.
Of course, we don't
know that it's the back end of the axle, but can reasonably surmise that as a possibility worth serious exploration.