i have similar problem, but not using stripe plugin.
i update woocommerce to 2.6.11 and everytime i put an order , it duplicate 2-3 orders. i was using woocommerce 2.6.4 with no problem.
i have delete woocommerce 2.6.11 plugin and replace it with woocommerce 2.6.4 , somehow the problem follows.. any solution to this matter ?
i’m also having the same issue.. before updating to 2.6.11 woocommerce everything is just fine ( i was using 2.6.4 )..
i have removed and delete woocommerce 2.6.11 and replace it to 2.6.4 yet the problem still exist. any solution to the matter?