IDEA does not pick up tsconfig types when in a subfolder like '[foldername]'

I have a folder, lets say its called 'app', this folder is a subfolder to '[foldername]' (yes with square brackets). 

You can look at it like this.

• [foldername]
• > app
• >> client
• >>> tsconfig.json
• >> server
• >>> tsconfig.json

Now, when removed from the '[foldername'] the 'types' form tsconfig suddenly starts working again. 

Has any experienced this, and if so, what was done to fix it.