Trying to download some RAW images from the Nikon Z8, I get a lot of corrupted images. Some are working ISO64 & ISO12800, but a lot give a partial image in some applications, or now image at all.

This one is not working:
Daylight iso 400 Z8 DSC_0024.NEF

I tried latest Nikon Codec, NX Studio, RawDigger, ... all say the file is corrupted. Only PhotoLab shows a top part of the image, sometimes 50%, sometimes 75%.

Can you verify the images stored correct on the server?

See the imageviewer:

https://www.dpreview.com/reviews/image-comparison/fullscreen?attr18=daylight&attr13_0=nikon_d810&attr13_1=nikon_z8&attr13_2=nikon_d850&attr13_3=nikon_d800&attr15_0=raw&attr15_1=raw&attr15_2=raw&attr15_3=raw&attr16_0=64&attr16_1=800&attr16_2=64&attr16_3=50&normalization=full&widget=898&x=0.7561431374381014&y=0.23003878948490405