Modern latex paints are designed to be easy to clean i.e. nothing sticks to them. This has been a problem in the industry (and a huge pain in my rear) for at least a few years now. There are a couple workarounds that have helped me out. If it's a permanent installation then use a high tack vinyl, my go to is Oracal 3105HT w/ 210 matte laminate. But the high tack will destroy the paint/wall upon removal. If damaging the wall upon removal is unacceptable then you can use a removable, cast vinyl/lam combo, my go to in that case is 3M 180 w/ 8520 matte laminate. Because cast vinyl shrinks a lot less than a calendared it's less likely to start peeling off the wall. It's the low adhesion in combination with the shrinking vinyl/lam that causes the peeling. Another option that has been recommended to me but I haven't yet tested for myself is to get a thick vinyl that's designed for walls and apply it unlaminated. The vinyl that's been recommended to me is MacTac Roodle its 6mil thick. I have a sample on hand but haven't had a chance to test it...my test will consist of getting a piece of sheetrock, painting it with the modern latex paint (low VOC paint is the hardest to stick to) and print a sample of the Roodle and test it on the painted sheetrock. I want the paint to be fresh to simulate the worst conditions possible. My test will be printed using an Eco-sol Roland (as opposed to a latex or UV printer), the solvent ink is more likely to cause curling/peeling versus latex or UV and so I want my test to simulate the worst conditions so I can really put the Roodle to the test. Using a latex or UV the inks doesn't bite into the vinyl like a solvent/eco-sol and so it causes less curling. Once I do my test I'll report back and let you know, but my hunch is that the Roodle is going to work just fine with any ink type, as long as it's unlaminated or laminated with a cast vinyl. Calendared vinyl will shrink and likely cause peeling. Hope it helps!