There are different ways through which you can do this crafting of 2D into 3D like of scalling, shearing. https://errorcode0x.com/fixed-dell-printer-error-016-302/ helped me to get the best way to do this.
The reason this hashtag started was that there was a guy in Japan criticized the company behind pokemon(gamefreak) saying that their 3D artist are useless. and skilled 3D models would be able to be made in 5 minutes. He mentioned that you can do 800 pokemon each in 5minutes so close to 60 hours will be only needed. and if they can't do that, they are not worth the salary. and 3D modelers took this as a challenge. Resulting in 3D modelers doing modeling / sculpting in various 3D software.
Don't know if you're still having this issue but it's fixed by enabling "Specify Manual Texture Size" and then playing with the "Manual texture size" input until it seems right.
Are you looking for a nice mask generator for Substance Painter? Check out a free one by Forest Telford. The artist created this as a masking method that can help you deal with the task easily.
I created this as a simple masking method compared to the built-in generators. Seems like most of them do too much or something too specific.
To use, simply add it too a mask as a generator. It will auto-plug in any maps baked out in painter, and will update if rebaked. It also has an additional normal map slot for passing in additional curvature info. Enjoy:)
In order to install it you just need to move the generator to the following folder: [User documents folder]\Substance Painter 2\shelf\generators.