jME 3.10.0-alpha4

can you post here one of these images (inside a zip file so it doesn’t get re-encoded )? And the code you use to sample it. I think the issue is that it is a single channel (R only) image, and you are sampling RGB. In 3.10 we changed the PNG loader, the new one tries to load the image as it is, without adding channels, etc, maybe that’s why. But if you can share the image, i’ll run some tests