Using your last low level Ultrastrike1 causes you to select XMP8's instead of the next higher US
Repro:
1- in inventory, one of each:: x8, US1, US2, US3...
2- use an US1
Observed behaviour: sometimes the carousel switches to x8
Expected behaviour: carousel should stay on US until you have no US left in inventory, only then should it select an x8 for firing.
2