4 building upgrades

i managed to get 4 buildings upgrade at once during this pvp. i dont know if it did actually upgrade 4 because the timer ran down on two and there was major lag so could check my buildings anyway. ill edit this with a ss later because im supposed to be diong homework right now.
EDIT:

That's awesome. I bet this is just caused by the massive lagg from the first 2 days of PvP.

For me, i managed to upgrade to a lvl3 trap when i only had a Lvl 2 Tech Trap.