I changed standart game recipes little bit. Created 3 recipe groups, then did this thing;

Edit → Export CRL2 → paste into Startup settings → Restart Factorio

But standart game recipes are still there, while changes are not saved.

For example: i changed 1 iron ore → 2 iron plate but its still 1 to 1.

i guess you havent tick the group on exporting, there will be a warning on that page
use /crl to open editor in game and check whether your custom recipe is there, if not then you pasted a wrong CRL2 config sring
you can also paste your CRL2 config string here so i can check

I found problem. I said that created 3 recipe groups. So only one of them affected to game. And i miss that point. So thank you for your reply.