Sirius and Simulacrum - DC

-Eariler today i opened simulacrum, reached somewhere around 14/5 died and server crashed i came back online in matter of seconds boom portals are gone.

-And now again with sirius server crashed or dced me, and the portals are gone it's not easy to build freeking sirius...

What to do now, are servers unstable?...will this happen again? How and what can i do to stop it?

Same happened to me at a conqueror map.
DC, cant join the map again and my progress is lost.

Thanks for that.