Why passed value is getting printed on the screen?

I have a value in the pixel streaming code and passing it in unreal engine using descriptor and pixel streaming from UI to unreal engine. I had added printString to check whether the value is being passed or not. After successfully testing I removed all the printString I had in the blueprint to not show on the screen when I run the application, but the value is still getting printed on the screen (even after removing all the printString in the blueprint). Can someone please help me out?

Here’s the blueprint: BP_Dhruv posted by anonymous | blueprintUE | PasteBin For Unreal Engine