This is hilarious.
In 0.17-offline the game tried to assign the school uniform outfit to the "Uniform" button on the screen, but the client couldn't find the uniform outfit assets and crashed. To fix it, I replaced the uniform outfit with the lingerie outfit, the assets were available.
In 0.18-offline the game tries to assign the lingerie outfit to the "Lingerie" button, but there's no lingerie asset and the client crashes. To fix it, I'm going to replace the lingerie outfit with the school uniform outfit assets which are now available.
So it's basically the same bug, but reversed.