The video of the single tank that ISW cites as evidence of "less [Russian] control north and east of Robotyne as of July 27" I think was released by Russia to laugh at the tank though.The 1st Russian Defensive Line has been breached east of Robotyne. There are many videos and images of villages in that region confirming that there is a large flow of Ukrainian vehicles and armored vehicles crossing at that point. Apparently the Ukrainians used the captured territory to the east to try to get around the village and attack from the south.