Hi,
i have Sony Ericsson live (WT19i) android 2.3.4. In the recent past i was able to add numbers in the group for the filter. But now i am not able to add the number to the filtered group.
i have followed SMS and Call filter → New group → group members → add a new group member. after this i am getting attached screen.
there was (well, is) a UI bug on some Sony Ericsson devices (probably due to changes SE made to Android on their devices because it’s working on all others) making our dialogs not work correctly. This will be fixed in the next version.
I also got the same problem here, i use SE Xperia Mini pro (SK17i) unrooted, with ICS 4.0.4
Previously it work perfectly, but since this month it doesn’t work at all.