Looks like incompatability, a similar effect happens when an LCD from a C module is used in place of an LCD from an F module. The circuitry for the LCD's segments are laid out differently so you get wacky display things happening.

There is a slight chance that the elastomeric "Zebra" conductive connectors are not perfectly situated between the LCD and the modules electronics as that will sometimes cause a similar effect, but if you where clean and careful with your assembly I'd bet on LCD incompatability. Good Luck!