Bug Report Using Filters on Capture Card Audio causes issues

I have a Magewell HDMI Pro capture card and i have noticed in OBS when add this device there is always some background feedback on the audio graph in the mixer window, to reduce this so there is no audio being picked up i added the Noise Suppression filter to the audio of the capture card.

In doing this though it causes a sort of low sample rate to some sound effects when watching the capture back, its odd some audio samples seem to sound just fine whilst other audio samples of the capture sound like they've been recorded in a really low sample biterate ,mlike below 96 or something. Any ideas why adding as filter to the audio channel of the capture card would produce this effect?
 
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