It seems like blend mode is not handled for LayerGroup.
The blend mode is set to “Pass Through” in photoshop. However when loaded in this SDK, the blend mode value read as “Normal”. This affect how some non-Normal layers or adjustment layers interact with other layers outside of the “Pass Through” layer group.
I have observed the issue shared by you and request you to please provide the source file along with used sample code reproducing the issue. We will be able to proceed further with investigation on our end on provision of requested information.
It is a very simple scenario, your programmer could just use any one of your sample code to open a PSD with "Pass Through” blend mode on a LayerGroup and observe the incorrect value.
The following is a PSD with LayerGroup “AdjustmentGroup” set to use "Pass Through”.
Apple.zip (62.9 KB)
I have observed the issue shared by you and have created an issue with ID PSDNET-540 in our issue tracking system to further investigate and resolve the issue. This thread has been linked with the issue so that you may be notified once the issue will be fixed.