PvP battle stops showing progress/units in combat
Although I have started regularly participating in PvP relatively recently, I have experienced this two times now: where a camp being attacked will suddenly have the unit icons disappear from the circles they are contained in, and all visual updates on battle progress on all camps will no longer show up and a unit stack type can now longer be switched, which can only be amended by a browser tab refresh and reload, at which point unfavorable player-enemy unit confrontation combinations occur usually resulting in defeat, which in turn results in a nonnegligible loss of additional troops.