TDI - Tab MDI in Extended UI - Resizing the frame

Does anyone use the MDI tab option in the Extended UI.

I’ve been experimenting with this option and I am experincing the follow issue when resizing the app frame…

For testing I have and app with 3 windows (Win1, Win2 Win3) maximised in tabs on the frame - all good so far.

If I select Win3 tab and then select WIn2, or Win1 and resize the frame, the selected window does not resize. Select a different tab eg Win3 and then reselect Win2 again it has resized.

Any help would be appreciated.

I’ve found the solution - adding a MaximizeBox to the windows allows the Tabs/windows to resize correctly when the frame is resized.