I am having a bit of a problem with the mission Assimilation and was wondering if anyone else had run into this issue. When the mission begins I have to defeat two spheres and a cube. At this point the borg begin moving towards rifts that have opened into fluidic space and I am suppose to follow them. Once I arrive there I have to defeat three groups of borg and three groups of undine. This is where the problem begins. After I open fire on the first ship and get it down to about half health, all the ships become invincible. Nothing I throw at them even makes a dent!! There shields begin recharging and they begin regaining their health. Even the other ships aren't damaging them.

I had this problem on another of my characters but after exiting the mission and coming back it worked fine. I have tried that on this character and it doesn't seem to do anything. I have even dropped the mission and tried picking it up again the next day! Anyone else had this happen to them?

I've never seen that happen. I've only played the mission twice, but i couldnt begin to speculate what that is. Send a ticket in. Hopefully you'll get a response soon.