When maximizing dockable windows on a second monitor they get cut-off. See attachment. This only happens, when the second monitor has a higher resolution, than the main monitor. Maximizing on main monitor or my third monitor which is smaller it works fine.
You already had a similar bug, which was obviously only fixed for the main monitor resolution:
https://www.telerik.com/forums/visual-studio-example---floating-document-is-not-maximized
My Telerik Version: 2018.1.220.45
Please get this fixed.