This bug is around since v2016.145 and is still present on v2016.146.

The border value changes and "sticks" to wrong values.
It may be relevant to add that I am using the metric system.

Example:
1) I click on the "zebra" button to ad an image to the queue specifying its size and borders (plenty of page space).
2) I select borders "B+" and click on border "1" and type 40 (40mm).
3) I click on "custom" to specify the image size and most of the time, but not always, even before I select any option or type any size, the border size typed on the properties window looses a zero (40 drops to 4).
4) If I hit OK the image goes to the queue with the wrong 4mm borders.

If I cancel and repeat it sometimes it works as expected, but it invariably reverts to the weird behavior lately.
I will attach some images.

Thanks.