I have edited my deck to use for siege attacks. The deck appeared to be saved.
I have attacked an island in siege but the game made me play with the old deck before the edit.
I have reloaded my game, looked at my deck. The deck appears to be new.
I have done a second siege attack. The game us using the old deck again.
#Stale deck used in siege
grizzled veldt
harsh nexus
same thing happening to me. on both browser and app versions. this is in addition to the mess of arena battles freezing/not scoring correctly.
wanton briar
same here
wheat harness
Same here, I removed some cards from my deck and they kept appearing back in during battles