I have an image that is basically some black lines which I have placed onto a blue background and gave it a screen effect to make it white. This is while in CMYK transparency blend space.
But when I turn it to RBG blend space is disappears.
I know there are ways around this and I have now made jpegs for it and exported them fine. But I just don't understand why it's doing this and if there is a way around it.
I tried turning everything on the page into RGB then applying the effect but the same thing happens.
Cheers in advance