I happened to pass closely to the tanker when attempting to refuel, Matrix reported plug complete and at that time comms completely broke. for a few times after this, when I called tanker to report pre-contact the tanker began speaking but abruptly cut off, after those 2-3 attempts to communicate w/ the tanker they stopped responding entirely. I wasn't able to plug and on returning to carrier, was unable to raise comms with them either. Tanker bug it seems, maybe that's what happened to the other guy but he didn't realize it. Happened to me b/c I met up with the tanker head-on and matrix plugged immediately during that fly-by
i'll try flying it one more time to see, I kinda figure it might just be a fluke