Bug with mastering effect
Using a the EQ in the special > mastering plugin create a crazy sharp peak at the end of the spectrum.
I have tested with low shelf, peak and high shelf they all create the sharp peak over 10k.
Granted it might not be audible but it could cause issues with headroom or create a crazy resonance. This plugin never did it before in the history of audition not sure why this bug has appeared now.
See screenshot below.
Matt Stegner commented
I'm unable to replicate this using a standard file. Can you give some details on how you are hitting this? Is it in the Editor or in the Multitrack, What is the sample rate of your source (either source file or the Multitrack sample rate). Are you working in the Effects Rack or on a stand alone effect? Are you using a preset with the effect?