i have had that also , with my png maps, , i have found by adding exposure and lightening image it carves perfectly , its like the image it to flat due to some of the grey scale, and MM cant see the detail
This was a bug introduced recently by an over-eager dev, trying to do ânoise reductionâ in the height maps to reduce processing overhead in the roughing pass. It ended up removing peaks and shouldnât have been added in the first place. Itâs fixed for the next update.