Lightroom 13.3 catalogue update issue

Hello 

I had lots of problem in the new version with my existing library lots of photos where missing after the upgrade , I'm on Mac what could be the cause ?

secon i see that the sliders are  straight in the middle , compare to former version  silders were all over the place without any edit , I'm using Nikon Z6II , is ther a new interpretation of the NEF files?

Addition to this concerning raws , with Nikon we can create and use custom picture contols , wich are settings kind of profiles .  Why are these overwritten by Lr now ? It was not the case on previous version , or perhaps i did not see it well.

In my case custom curve  and saturation adjustment in camera .

it's visible in the file preview in LR, it's reflected by the Nikon software also, but as soon as I display it or want to edit , it's replaced by something else .

What can be done ? can NCP file be added somewhere as preset ?