There are two major bugs that I've seen in the Undine Space Battlezone:
1: After capturing all points the overall progress bar wasn't filled, preventing the planet killers from spawning. It seemed to be waiting on one more capture even though there was nothing left that was still under Undine control. I was able to get the planet killers to spawn once, though after clearing several other instances and not having the planet killers spawned tells me that the problem tends to get each instance bugged badly. Speaking of the one time they did show up...
2: After killing all three Planet Killers the Voth invasion showed up. However, both the "defeat Voth invasion" timer and the "Undine will return" timer were displayed at the same time. The Undine timer ran out before the kill Voth timer and the instance reset without giving any rewards for killing Voth. One thing that is worth noting is that the one time I saw how this was supposed to work on Tribble the game didn't provide any rewards for killing the Planet Killers until after the Voth invasion was completed, at which time it appropriately gave me the rewards for both the PKs and the Voth. Whenever it bugs like this it gives the PK rewards immediately rather than waiting until after the Voth invasion.
I don't know if this is related to either bug but there was also a timer stuck at around 3:00 every time I went through the battlezone.
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