@tacticalsnail In the Main Menu go to "Controller Settings", "Configure A Controller" and then do the Button Mapping for your Controller.
Have you tried other controls to make sure the problem is not in the controls?
Thanks for your fast replay @SUBSTRING! Yes I am using an official release, although if I remember correctly the last update I got was the one saying "yolo" in the changelog which was only live for a couple of hours, so dunno about that...
Thanks for your advise on external storage, gonna look into it! chaiuwe