Symptoms

The customer get an issue when trying to "open a subview" action from a button in the bottom of a form : The windows is extended but seems to disappear. In fact the windows is display in full screen but in the top, not in the place of the button.
In other words, K2SF Runtime - When one Maximize a Subform/Subview it jumps to the top of the Form

 

Diagnoses

it look like a css bug in K2 when the button to open a subview is at the end of a view with a big scroll bar. In this case, a double click on pop up view toolbar or maximize icon will move the pop up out of the current screen (pop up is move to top of page whereas we are at the bottom)

After double click on top bar or in maximize icon i get the following CSS :
.popup dialog id-runtime-dialog sub-view ui-draggable no-buttons maximized ui-draggable-disabled ui-state-disabled{
top:5px
}

On the first opening the CSS Top is :

.popup dialog id-runtime-dialog sub-view ui-draggable no-buttons{
top:857px
}

 

Resolution

ColdFix provided