Muffin, MetOffice.
I too replaced my ICOM A200 with the new 220T and also discovered the problem. Spoke to their people at LAA Sywell and was reassured they had contacted the manufacturer in Japan to request a fix.
I'm very happy with the radio and, as I don't need 8.33 yet, am happy to wait for the fix.
Hmmm? Japan - speedy fix? We know a song about that don't we Colin