Do we know if the 2019’s had updated parts?

The recall covered 2014 to 2016. It would appear they then got on top of the problem & stopped making the components out of cheese..

I’ve seen reports of a couple 2017 and 2018’s failing.

I’m sure they have, they clearly don’t care about the consumer.
The attached recall notice - you tell me what years it covers pls?

I also wondered if vehicles that have had the replacement parts are failing for a 2nd time? I.e. since I've had mine done, do I still need to keep checking them.

Chris. L405 - 4.4SDV8 Vogue
P38 - 4.6V8 HSE
Land Rover series IIA V8

Well - it certainly makes you question the ongoing credibility of the vehicle & organisation behind it. LR insist that the Recall notice I previously posted for your comment only covered 2014 & 2016 model yrs. I counsel your opinion - as I & many others read it as to cover 2014 to 2016 - Therefore including my 2015?
Given that my failure is the same as on a 2014 or 2016 I’d like to hear the argument rather than their continued silence.
The extended warranty finally covered my OSF failure but I elected to pay for replacement of the NSF. I have had that component independently x-rayed & it did actually return with no fault found.
Whether travelling at 10 or 100mph - this is a life threatening fault.