Do you mean the geocoding section in the MapPress settings screen? Whatever values you put there should save when you click the ‘save’ button.
I’m not sure what might’ve happened in the intervening two days to reset those settings, unless someone clicked on the ‘reset defaults’ button.
What happens when you enter a value, save, and then just reload the page?
If it happens again, let me know the steps to reproduce it, and I’ll see if it’s a bug.