Attached are the videos of both bugs.
Both of them are on a reinstalled 6.1.1.600 (user data was removed).
On the first video notice how I close the search popup, then press Alt-` (boss key) to hide and show, and then the search popup reappears again.
On the second video I've logged in into Maxthon and into the forum. I am trying to drag a file into Maxthon window.
bandicam_2021-01-12_18-38-03-884.mp4
bandicam 2021-01-12 18-50-03-837.mp4