Today I migrated an app from ExtJs 5.1 (crisp) to 6.0 (triton).
While I'm using sencha app watch and sencha build development everything is ok. But when I issue a build testing or build production it does not create the resources/MyApp-all.css.
Copying the resources/MyApp-all.css file from development makes my app work right.
What is going wrong with that builds?
Thanks.