Inside my project’s source code.
“PROJECT\Source\PROJECT\VR\InteractableObject”. I used the “New c++ Class” button within Unreal4.
I made a new clean project, this didnt fix it.
Then I deleted the binaries & intermediate folders (of this new project), still didnt fix it.
Editing my previous answer : the serialization issue is still here, it didnt go.
Any time I add/remove or edit the type of a variable in the structure, it resets the value of all the variables of the struct, everywhere in my project, the ones I did not change included. This only shows after closing/reopening the project \o/