Warping Doors

[2bits]

With all the different possible problems in building a Teardrop I tried my best to avoid as much as I could. I got some warpage on some cabinet cutouts that I redid to make right and learned quickly not to stand up plywood to store, even for a day or two. I feel very lucky that with my 3/4" plywood cutout doors carefully laid flat and stored in my house, not the garage didn't warp.

Do "Built" doors have a history of warpage though? I don't know since I didn't build mine that way, I didn't commit it to memory as I did with other components that were similar to my build.