On Windows 11 Pro 25H2, every time I move Heidi`s main window (after connected to dbms) from my Full HD monitor 1920x1080 100% (1:1) scale to one of my UHD monitors with 150% scale or vice versa, then main window stocks between two monitors. Left half on main window is on the UHD and the right half on the Full HD monitor.
It is not possible to "move" the window by clicking on the Heidi`s logo in the taskbar and selecting "move window" in context menu, because there is none!
It is not possible to "drag" an move the window by the program-bar (window-header), because pressing mousebutton and hold it also not work!
It is also not possible to use the "task-manager-tricks" and sometimes even kill the Heidi's process, because there is no process there with that name.
This issue is replicable and for producing you need two monitors: UHD and HD 1080p, when UHD is scaled 150% or more and HD monitor is scaled 1:1 (100%). Important note: UHD monitor has to be the main display.