The miner report the error bellow and "stratum/pool" consider I am not sharing solution anymore (it does no profit at all) :

GPU #(one gpu number) got incorrect share. If you see this warning often, make sure you did not overclock it too much!

It already happened with Nvidia and AMD GPUs yet. My setups use factory timings. I do not overclock because it does more power consumption than efficiency.

Then It looks like that "this overclocked loop" can be done by default. So I wonder if that is for penalty or something else ?

Edit : little mistake - It looks only AMD GPUs got that.