Find menu items missing, addresses, postcodes

1) Where to menu does not show “use map” although “use map” appears at the top of the change item order menu

2) Where to>addresses brings up fields for search area, number, street name. If I press search area there are 2 more fields, city/postcode and number. Pressing City brings up a text field dialogue box, if I type Oxford into that, I get a choice of Oxford or Oxford Airport, but selecting either of these returns a screen saying not found.

3) as above, but enter a UK postcode - say SG8 5NT - screen says no results found. But click the 3 line menu but, select map, select city navigator, the postcode is accepted. Select the postcode, and it says none found, until any text is entered into the number field, and then an address is offered.

is this a bug? Or is there another way to navigate to an address or postcode?

also, why doesn’t drag and drop work to rearrange menu items in the find menu?