It eventually worked. I rebooted my system and then it started to work. Not sure why but I'm not going to complain. I tried to import the RAW file into Lightroom but it was a no-go. LR says it did not recognize the RAW format. I saw that you were able to open it using RAW Therapee. I wonder if the DNG was written before or after the phone's demosaic algorithm. I know the phone processes the image (no vignette as was mentioned) but would love to save RAW editing and NR to third-party software. Any chance this might work in Lightroom one day?