Wouldn't that just affect focussing rather than the aperture?
If the camera aperture mechanism failed it would fail on all lenses, not just this one. As Rob says, this lens is likely to have a sluggish aperture lever, though that's unusual for a fairly new lens.
Just check the lens by flicking the aperture lever and if it doesn't return quickly, it needs a service.

That's quite good.

Thanks for the info on Elite.
Re Kodachrome - Agreed, I used to try an find short dated or just OOD stock. There used to be some real bargains. Also liked Agfa CT18.

Reckon I beat you to it!

'Elitechromes' - Never come across those, were they any good? Any examples you an upload? Their price was certainly reasonable, can you still get them?

At least something good came of the time spent there, but don't reckon it needed a course to attend to take them though. But (of course) without the course those photos wouldn't have been taken!

They've never actually stopped!
https://www.kodak.com/pk/en/motion/Products/Production/default.htm
There are dealers who have spooled the bulk film intended for motion picture companies to 35mm cassettes for casual use.
I note too Super 8 movie stock is available again but that's something off topic here (though some who aren't keen on Pentax's video capabilities might well find a good use for it in a real movie camera.)

Rob, you could have taught the two tutors something having just looked at some of their work on their respective websites (which I wouldn't give house room) compared to your gallery photos here. Just waving a camera around is what a two year old child would do and the abstracts are akin to primary school artwork. Surely they are capable of better?

Also, if they are running a course, they shouldn't go off on their own tangent doing their own thing for themselves. I'd be onto the organisers with a complaint.

No, it didn't hang around.

And apparently now sold (not surprisingly.) Anyone here purchase it?