Working on an upgrade for a client from 2015 to 2016.

The validate address button seems to be missing in 2016 on the address tab of sales order entry and invoice entry.  If you click into the ship to maintenance it is present there.  It is also present in customer maintenance.   The recalc button is present on the totals tab.

Usually you have to go to custom office and do an update panels to current to get it to show again if you have a customized screen.  I have done that and it doesn't seem to help.

Next step was to remove all the customizations and try again.   Nope.

Is it possible they removed that button in the 2016 version?   It is definitely there in the 2015 version.