Intelij how to show variable value defined inside *.properties file ?

Hello,

In my Spring project, I have a `default.properties` file with constant variables defined.
When I use those variables inside a *.java file, Intellij doen't show the values of the variables.

It worked in the past, it was showing the value insteal of the keys and I don't find how to activate the option again.

Can someone help me please ?

Example below; it should show "false" instead of "key.ftp.active" :

Thank you