Labview VI front panel flickering while running code.

[Govinda-Capsys]

Hi, I I'm playing video by using windows media player in LabVIEW. When I run this vi code the video play as required and front panel also stable as normal. but when I call this vi from another vi like static call and launch the VI, my video panel window starts flickering/blinking (Not effect on video only vi window blinking). why it's happening? 

[pincpanter]

Post your code or a simplified version (preferably in LabVIEW 2021 or earlier). From the description, it seems that the subvi is executed several times, but it's not possible to state anything without seeing the actual code.

[Govinda-Capsys]

My code is same as attached Vis while running individual code it's not flickering. but run my complete project the call this vi, then vi flicker. I have attached video result for reference.

[pincpanter]

I don't see the window flickering, rather the media control appears completely black. The only way to view the video is to show the subvi FP before running it.

[Govinda-Capsys]

When running this code separate it not flickering but as runs all the full project that time flickering occurs. And the tried with show FP Before running then also issue remains. I have taken another trial simultaneously runs the project and run the simple video play the issue with that video is flickering is the same which is independent on the respective project. Its maybe system related issue idk.