Hello. I am a designer.
I made a 9-patch through figma.
- Made with plugins
- Do-it-yourself
However, both methods 1 and 2 failed to build Android.
So, I made it through sketch and the build was successful.
Do you know why?
I want to manage assets in figma… please help 
https://www.figma.com/file/P3j7QskqgtVOMtgSFQSUP4/Untitled?node-id=0%3A1