heavy noise in blue areas of image
I recently imported a batch of images that I shot in a dark club and the original import images that I looked at last night did not have this massive amount of noise in the blue areas. The noise just showed up today and I'm scratching my head as to why.
I have deleted the imported images and re-imported twice.
I have checked the original RAW files and they seem fine.
I have uninstalled and reinstalled Lightroom Classic on my Mac.
My guess is that there is a setting somewhere I have missed that is causing this?
Attaching screenshot of Lightroom look as well as a .png version of the original image. 

Attaching a scr
