Sounds like the issue is related to the Sub-Application object? If it's a pop-up Sub App, you can use the Window Control object for this. In the main/parent/outer frame, use the Window Control object to get the current position and size of the window client area and store that somewhere the sub-app frame can access (e.g. global values or a global object's alterable values). Then, inside the frame that runs in the sub-app, use the Window Control object to reposition and resize the window to that position and size. Note that things are more complicated if the sub-app has a window border, since that affects the calculations and can also be affected by each screen's DPI scaling factor - if you're using the sub-app for pausing, we recommend turning off window border for it.