screenshot with ui ue 4.27

hello . i have this problem : in ue 4.26 i use this code
FString CurrentDateTime = FDateTime::Now().ToString(TEXT(“%Y-%m-%d %H-%M”));
FScreenshotRequest* request = new FScreenshotRequest();
request->RequestScreenshot("ScreenShot " + CurrentDateTime, bCaptureUI, false);
with bCaptureUI true, for take a screenshot with ui and pov of possed pawn, now the project is updated to 4.27, but when i use this code, if bCaptureUI is true, the screen show ONLY the UI.
if false show pov withuout ui. i try with highscreenshot and console command shot, but not change , when i use shot showui the result is same.