I have only noticed this recently, more than once, but don't know for how long it has existed without my noticing.
When you enter certain places (for birth, death, baptism) and it finds them automatically, and then you select for auto-fill, in some cases it does not fill in the city (or place name) correctly, and you have to type it in manually.
A recent example is the village of Oulton in Norfolk. It finds it as "Oulton, Norwich NR11, UK", but when I look at what it's filled in underneath, it's only put "Norfolk, England, UK".
This is clearly not right. I am just wondering how long this has been happening without my noticing, as a lot of the time, I just save without editing the location further.