Google play services - Leaderboard not writing to google score

Greetings all,

I have configured all the settings with all the Keys and information needed to comunicate with google services, my guess is that I have done something wrong in the blueprints, but I can not figure out what.

I want it to read whatever score the player has in the leaderboard and use that information to either update his savegame or update his leaderboard, but it is not doing neither.

I know the savegame is working, as I have tested if the information was writable and readable, I know the name of the leaderboard is the same in both google console and blueprints, including higher case and I know the Project settings has all the right information on google console as well.
Also the game makes a login check in the start menu and it is only possible to access the menu if the player is logged in his play games account.

This blueprints piece is from what happens after the player dies, in the player character blueprints.

I have made a few modifications according to what I have seen in that Tappy Chicken example game, still no luck.
What am I doing wrong here?