Exporting that DNG (with all your settings) works fine on my Macbook Pro M2 Max / LR 14.0.1. That, combined with the fact that it exports correctly on your computer with the GPU disabled, points to a bug in the graphics driver or, possible but less likely, a bug in how LR is using the standard Windows API that only affects this particular GPU/driver (LR doesn't code for particular GPUs). In general, LR uses GPUs much differently than other apps and trips over driver bugs that don't affect those apps. Games generate gazillions of little shaded triangles in real time, whereas LR is executing a complicated rendering pipeline to apply the various non-destructive develop settings to an array of pixels. There are many, many posts here from people who have experienced driver issues with LR but not other app, and updating the driver fixed them. As an immediate workaround, if you set Preferences > Performance > Use Graphics Processor to Custom and uncheck Use GPU For Export, you should get all the other benefits of the GPU except for export. (LR always uses the GPU for its AI commands -- denoise, masking, and lens blur -- ignoring the setting in Preferences.) Historically, new releases of Nvidia Studio drivers have been pretty well tested and don't introduce new problems for LR. But I recall a couple of instances in the past where a new Studio driver has introduced a bug LR tripped over. You could try rolling back to an older Studio driver, say 6 months old, to see if that helps: https://www.nvidia.com/en-us/drivers/results/ Or you could wait for a month or two and hope the problem gets fixed in the next monthly release.
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