I am working through some inventory issues to try and get our inventory calculations and adjustments correct and can select neither an "A" or "B" method through the drop down menu.  If I click on it, it simply flashes the options quickly and leaves the field blank.  This is not the first time I have run into this issue in other modules within EVO.  We have not yet implemented the latest update, as I was informed by my predecessor to wait a few months for "bugs" to be worked out before putting in the updates.  This definitely seems to be a "bug" in the previous release, but I do not want to "assume" anything.