New added input on Project Settings > Input doesen't save and keeps getting overwritten

When i add a new input on project settings > input that are not from the default.ini, the moment i hit “play” to test, the input disappear (i can see on the input window just vanishing)

I already tried to put manualy on the defaultinput.ini but it always get overwritten when i test the game.

You likely have a problem with your keybinding blueprint- probably removing them but not adding anything back.

As a side note, that input system is now deprecated.