Docking: Cannot dock floating tool window after resize on two-monitor setup with different DPI
This issue is replicable in a setup which has two monitors and wit different DPI. If a docking window is resized to a width over both monitors, when the window is more than a half on the monitor with lower DPI, it is not possible to dock it.
After detailed investigation appeared that this issue cannot be resolved in the default scenario due to framework behavior and limitations. However, we fixed the same scenario when DpiAwareness PerMonitorV2 is applied, and we recommend enabling that feature in your application (you need to target .net 4.6.1 or above and add app.manifest file as explained here) in order provide better high dpi experience.
Let me know if you have any additional questions or concerns.