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.
CG Society has a brilliant recording of Live Session on August 19th 2016 with Andres Rodriguez that will tell you what it takes to get into the industry as an environment artist. The artist from Naughty Dogs also discussed some of the things he did for Uncharted 4.
Andres Rodriguez now teaches the elective class Intro to Environment Art at CGMA. The course has already started, but we’re sure you’ll have chance to join another one in the future. Learn more about the class here.
Make sure to check out the artist’s portfolio here.