emerge installes gimp-print-5.0.0_alpha1. after successfully doing that it will downgrade it to 4.2.6, when doing emerge -Du world again. infinitly. please fix that.
4.
4.2.6 is the latest stable version, so portage shouldn't upgrade to 5.0.0_alpha1, try to rsync again
i forgot to mention, that i use ACCEPT_KEYWORDS="~x86" in my make.conf. i did another sync... nothing changed.
i masked gimp-print-5.0.0_alpha1, because it's an alpha version, now it shouldn't upgrade anymore.