There are a couple of "tricks" you can use on Hasegawa decals that won't behave. Try dipping them in near-boiling water, or applying them to a small puddle of white glue diluted w/water, or onto a puddle of Future. The hot water helps soften the decal & its glue, & the white glue or Future helps adhesion. As always, experiment first to see if it helps. Try it with a decal that you won't be using from the same sheet. Good luck, & I hope this helps !