SUMMARY Some filters in G'MIC requite multiple layers as an input. This doesn't seem to work. Testing on Windows 10 - nightly build from yesterday, April 28, 2019 (e36e243) STEPS TO REPRODUCE 1. Have an image with two layers 2. Select both layers in the layers docker 3. Main menu Filter > Start G'Mic QT 4. Select "Stylize" from the artistic category 5. Select the "top" or "bottom" layer for the style drop-down at top 6. Hit Apply button at the bottom to try and apply the filter OBSERVED RESULT Filter gives an error saying it needs two layers and doesn't apply. EXPECTED RESULT Filter runs successfully (or at least doesn't complain about needing two layers)
In my experience, they do work, otherwise I wouldn't code in G'MIC at all. Stylize filter for some reason can't work at all in Krita. That's a bug reported by the maintainer of Krita.
More commentary, I use nightly and Windows 10 myself.
Marking as RESOLVED UPSTREAM. This is a GMic bug, whenever it communicates with the hosts, it requests the Active node only. It should ask for the whole layer tree.