That happens sometimes, I do not know if it depends on storage, age, type of decal, global warming, all of them…
In any case, there are liquids that form a film on top of the decals and help keeping them in one piece. See this recent thread:
That happens sometimes, I do not know if it depends on storage, age, type of decal, global warming, all of them…
In any case, there are liquids that form a film on top of the decals and help keeping them in one piece. See this recent thread: