Glitched Eclipses casted on players by flag guards are currently responsible for a constant and reproducible crash in Cyrodiil.

Proper Eclipses from which you can cleanly Break Free, they are fine. The glitched ones you won't be able to break, or stay on you visually even after you Break Free. If you continue to stay in the battle and keep fighting with it, the moment the glitched bubble expires by itself, you and everyone in proximity around you will crash.

Between last night and tonight, our small group has collectively crashed over two dozen times upon assaulting resource and keep flags, before we stopped fuming and started noticing the consistent pattern. We haven't figured out the exact circumstances that cause the crash, other than that it follows a glitched Eclipse expiring by itself—instead of exploding as a normal Eclipse does. We've tried getting the person with a glitched bubble to run away from the group, which seems to help a little bit, but someone will always end up getting crashed nonetheless, no matter how far they are.

If you run with a big group that just mows down the guards, it's no problem no matter how many skills are being spammed in small quarters; if you have a small group, however, where you're duking it out with the guards for a while, you can almost count on crashing on the flag when the going gets rough.

Bug report has been filed; just sharing what we've found. More reports would be appreciated.