Perhaps its not making good enough contact? The metal can legs are a bit thinner than regular DIP socket legs. Perhaps sanding the legs to make sure they are super clean and make sure you have positive contact in the socket. Otherwise.... solder it to a dip socket and try it then?
The contact is good, I solder it directly to the dip socket. However, I mix 2 dip-8 direct solder metal can with the good to-99 to dip-8 adaptor (same opamp) , and noticed that only one direct solder metal can causing the auto off. This particular one cannot run at high gain and it uses 'cheaper' dip-8 socket. It may be the dip-8 socket problem? I need to order new socket to confirm.