Geolocation area size inconsistencies

In the Smartthings Dashboard on you can adjust the size of your geolocation to a size smaller than 150m which is the minimun size avaliable in the Smartthings app on Android. However, when I choose to make the area about as big as my apartment building or office ( approximately 50m in diameter ) on the website, the area in the app changes to 250m.

This is rather confusing, am I not supposed to be able to make it smaller?
Why does it revert to 250 instead of the minimum 150?

Would be lovely if this was unlocked on all platforms and actually worked instead of performing some weird revert bug.