What ISO did you shoot? I shoot dusk shots 10 - 15 sec with Aptus 75 with no problems tethered to v10
Unfortunately,now that I've had the chance to run the problem files through
LeafCapture v10 and Raw Developer.
The black and white speckly 'pepper' grain seems to have been diminished but
red pixels are evident everywhere.
I've attached a reference crop for anyone interested