Disable post processing impacting HUD widget

Hi - I have a game that uses heat haze from the sun (its a desert terrain bought from the market place).
I have a character with an attached widget for health/energy but I don’t want this HUD widget to be impacted by the sun haze (which I presume is a post-processing effect). Is it possible to disable HUD widgets from being impacted by effects ?

Anyone?!??

I have the opposite problem my widgets are not being effected.