Guild Wars 2

mystic forge cant see my rings so I cant upgrade them. I tried to extract infusions from them but it didnt helped.

You are doing it wrong, a ring cant be infused before you attune it. Go search for 2 not infused rings in bank/alts, attune them first and infuse them with vials-globs-shards after. When this is done you will have 3 slots and can apply your old infusions

not true, i dropped infused ring yesterday and it CAN be attuned. I just cant attune my old rings. And one player told me he normally attuned his old rings.