The Ukrainian Army appears to have thrown a division-sized element at the Russian lines south of Orekhovo, with large attacks reported (Ukrainian time) yesterday afternoon (image 1), last night (image 2), and another one as I write this in the morning (image 3).
Thanks to stiff Russian fire and air superiority, the excellent Russian air defense system swatting incoming missiles from the sky, and a stubborn defense at the front line, these attacks all broke down with heavy losses and no to minimal gains.