I have just noticed that with the latest stable build (4.6.1) on an Intel Mac, if I use the “local contrast” preset of the Diffuse or Sharpen module, together with the option “high quality resampling”, I get a totally borked jpg with only stripes (see attached). If I turn off “high quality resampling” the jpg looks fine. This seems to happen with a Ricoh GR DNG files, but it does not happen with a Fuji RAF file.
Hopefully someone on a Mac and 4.6.1 can confirm for you. I’m running a version of the master branch and Windows so I can’t try to replicate your issue… there are a few Mac users so someone should be able to try it
If you can reproduce it, then we should start a GitHub issue to track this. Can you reproduce with/without opencl? A log from -d common can help in finding root cause.
I found out that the culprit is the Diffuse or Sharpen module, specifically the “local contrast” preset. I’m going to open an issue on GitHub. Thanks for the assistance.