I am having the same problem with affinity designer and acrorip. As you can see from the pictures the colour that affinity and acrorip shows is not the same as the print on the t-shirt. I am working in cmyk 8 with u.s. web coated (swop) v2 colour profile. I have exported as a jpeg because acrorip doesn't like .tiff or off files. I also managed to get the same colour profile on acrorip. Please help.

Acrorip 9.0.3