Yeah indeed. You’ve got two different thresholds - DMC is for the raw data that your light, gi and materials sample, the AA one is the threshold for the final colour values that come back for each pixel. You can often get bright areas in the sample rate just as the AA sampler is having a hard time dealing with really big ranges of brightness changes - it can look fine in your elements (often it’s kind of burnt out) but vray’s sampler is still freaking that each new sample it’s adding in is making more of a difference than your colour threshold is asking for.