Ferrite 604 high FS HF diaphragm?

[gearfreak]

So if the image loads at proper res, despite the severe JPG compression required to get below 97.5 kb...
(The terminal you see is on the diaphragm).

Your task is to spot the flaw responsible.

Of course those who know what they are looking at will probably be able to make the correct educated guess. :-)

- - - Updated - - -

* and (second pic) I did look with a strong flashlight. Did not find anything of course.

...but for some reason, I have a sudden urge to pile all my mashed potatoes into a mound in the middle of the table. hmm.