This is a bug where certain profiles are being patched into Easy View 2 in the wrong mode. When you patched mode 2 (13 channel) of your fixture, Mode 1 (8 channel) was being sent to the 3D, hence channel 3 was controlling the dimmer.
The developers have created a new Scan Library that can fix the profiles that have this problem. Open your profile in the new Feb version (link below) and re-save. Re-patch into Daslight and this should fix the problem.https://drive.google.com/open?id=1_vGvn ... 32Bmru3weM
A good way to check the 3D is using the correct mode you have patched into Daslight is to check the construction mode settings in the attached image. Hope that helps.