Can't change shipping rates

When I try to go in and change an imported shipping rate, I get this error:
Please make sure that minimum and maximum values don’t overlap
?
I’m only changing the dollar rate? Why is this happening?

Hey @mhunt,

In the new interface we increased validation on shipping rates to ensure that they would be set up correctly. You’re receiving the error because the order items in your rates are “overlapping”. For example: Based on your rates, orders with 1 item could either be charged 16.83 or 17.82 since it is in both ranges.

To charge in individual increments, you’ll want to update them to something like:
rates