I think it is not the right way to organise the layers in the image document. The layer groups must organise only groups and layers but do not effect on the blending modes.
Hi, yustas! Thank you for your report! Our layers concept differs from the one Photoshop has. All the layers in photoshop are stacked linearly, while in Krita the layers are grouped in trees. It means that the merging starts several times from the bottom of every tree, and then every branch is composed into the final image. This way of working has several pros and cons: + the group need not be recalculated every time, if there is no change inside of it. This is quite important feature for creation of big images and artists use it quite often - one cannot use group layers as a set of filter layers We had some discussion about it before (see bug 185448). This might be a nice feature, so we will probably implement it in the feature, if many people will ask for it. *** This bug has been marked as a duplicate of bug 185448 ***
Hi Dmitry! Thanks a lot for your detailed answer.