This is a really random thing.
Finally after many openings I managed to capture a terminal log of the situation.
I don't know if there's actually something useful in the log.
1. Opened files of a folder with: $ scratch-text-editor Documentos/*
Every file got loaded. Closed Scratch
2. Opened Scratch with: $ scratch-text-editor
In one of those 2 "CMakeLists.txt" gone empty.
This is a really random thing.
Finally after many openings I managed to capture a terminal log of the situation.
I don't know if there's actually something useful in the log.
1. Opened files of a folder with: $ scratch-text-editor Documentos/*
Every file got loaded. Closed Scratch
2. Opened Scratch with: $ scratch-text-editor
In one of those 2 "CMakeLists.txt" gone empty.