Great. Those steps are all ok, and as I say, work correctly for me.
As you’ve found auto-complete (signified by yellow boxes throughout the system) is faster and (IMHO) easier to use. At some point I’d like to get rid of the old ‘filter’ popups. But that’s not relevant here. the filter option is there and should work.
I’ll investigate later, perhaps tomorrow now. It’s unlikely, but possible, it is hard-coded to use “I” and ignore your “A”. That shouldn’t be the case, and I’m pretty sure it isn’t, but I’ll check.