>>11243196>>11243238Similar thing happened to me with one of my first dioramas, using some cheap dollar store wooden plaque. Took the paint fine, but used watered down pva glue at one point and the whole thing buckled enough to nearly rip the terrain in top of it in half. You can see the start of it in pic related. Ya gotta be smart with your materials and protecting them, unfortunately I am not very smart.