Depending on position where you are grabbing the title bar, behavior of dragging published-app's window is different as follows.

<Position A>
When you grab "center of title bar", Only frame of the window moves. Content of the window is NOT displayed.?
This is expected behavior of published app, I think.

<Position B>
When you grab "bottom of title bar", the window moves as "Full Window Drag". Content of the window is also displayed.
 

This is by design. To avoid the behavior for position B, please bypass by user operations. (Not to grab "bottom of title bar" for Window drag)
 

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Problem Cause

This is by design.

<Position A>
The difference comes from the fact that in the first case, the window drag is done first on endpoint OS window,?
then new window size requested to ICA host.?

<Position B>
In the second case, the window drag is done on ICA host side window first.?
“Show window outline while dragging” is off on endpoint while it is on in ICA host. This is by design.?