GetViewportSize inconvenient behaviour

Hi,

While testing in “New Widow” GetViewportSize() function at first returns not the viewport size, but the whole window size. After a some delay it begin to return right viewport size values. It’s not a big deal, but it’s little inconvenient and if it can be fixed it would be really nice.

Or maybe I don’t know something, so I appreciate any advice on how I can get correct viewport size in BP or C++.

Thanks.