NDI Video Texture gets brighter and blows out on a paused video.

Sorry i’m new to Unreal but cant find a solution.
I have a simple setup where i’m projecting a NDI emissive Color texture in an empty unlit room. the Video starts out fine but after about 5 sec the brightness blows out ( see png bellow). I can turn down the brightness of the video but then it starts black and fades up to correct brightness.

I’m guessing i’m missing something simple but cant figure it out.