So, as it was asked - from topic viewtopic.php?p=433946#p433946 I cut out a part of the description of the complex bug, which forms another one (simpler?) - a separate bug, relative to those described in that thread.
Bug concerns the new menu 'List of all tabs (Ctrl+Shift+A)'
Another manifestation of this bug is the fact that in 32-bit Total - only in it - if I call this menu and then press *, and then click outside the area of this menu - the click will "fall through" even outside of the main Total window, which is supposed to be figuratively under this menu at this time. And it activates the previously launched application that is already BELOW the Total window and whose working area of the window is in the focus of the mouse click. The same problem and with ALL_TABS new menu!