Textures seem to load fine for me. Also painting across tiles in mudbox works fine...

As far as ADP's eye problems go. Immediate solution would be:

Assuming your magnet scaling/translations work seamlessly with blink and eye rotations without any clipping... spawn a full body morph from your magnets (assuming this is possible, I don't have much experience with magnets, I'd be shocked if it weren't possible) and once you have the FBM dial result apply the match centers to morph command to the FBM choosing those actors effected by the FBM in the pop up. Once this is done test to see if everything works as expected, I usually check the origins/ centers by using outline display style on the figure and activating display origins in the effected actors. When you spin the FBM dial the origins should move along to accomodate the alterations. In order for this to reliably copy to pmd injection it's best if the match centers is applied to a fbm dial in the body, even if it's a single actor and especially in the head. As a paranoid safety precaution save your scene file and reload it before generating your inject. This seems to be a cure all measure for things such as split morph option not showing up in the options etc. Poser seems to behave better if things are written and then reloaded for these kinds of operations.

Let me know how this works out for you.