Processing a CR3 file in Denoise - Result is very dark

I just tried to process a CR3 file in Denoise 3.0.3. It came out very under-exposed. What is the work-around for this?

And can I do a Denoise batch process from Lightroom? If so, can someone share a link that shows how to do this.

Thanks and Cheers.

See this article:,menu%20and%20select%20Open%20Images).

Thanks, much appreciated.