what game? have you tried other games? I have a streetfighter game that refuses to work in analog.
also, is the controller analog and digital? is there an option on the controller to turn the analog off? Did you try changing from analog to digital (or vice versa) in the fpse controller options? sounds like fpse recognizes the controller, but it's not working with the games for some reason.
when you say 'bluez didn't help' - what does that mean? were you using bluez before? if not, how were you cnnecting the controller to your device?
the other option I originally mentioned was to use the builtin bluetooth in fpse. to use it you likely will need to unpair your controller with your android device so that fpse can pair with it properly when it tries to use it's built in bluetooth. Again, I don't know how well it will work since it's not designed for your controller, but you can try.