>>410357401
>bug
naive... so naive you are.

let me explain it to you,
they did it on purpose because it stops all piracy as you cannot install unsigned appks without dev mode, then they will monitor how much sales raises in meta store as pirates will be forced to buy the games, and then they release a ""fix"" to put the devmode back, then take a while to analyze the data and decide if the sales spike was big enough in order to make it worth removing the dev mode permanently.