Resize Issue with Painter 2017 (Windows 10 & Cintiq Companion) after on-screen keyboard input.

(Posted this on Painter product forum without a response so hopefully someone can help me here.)

When activating the on-screen keyboard in Painter 2017 the Painter window is resized (truncated at bottom) to accommodate the keyboard. After keyboard input is completed the Painter app window does not resize to full screen and I have to minimise, then maximise the window in order to get a full screen app window again.

How can I get the Painter 2017 window to auto resize to full screen after using the on screen keyboard? This is an extremely annoying issue which requires multiple steps after every keyboard use. Looks like an internal event in Painter is not firing...