BUG: Envelope Distort (with Anti Alias option on) changes colour values of embedded images.
When trying to use Envelope Distort (eg Mesh) and the 'Anti Alias' option to maintain clarity, if the artwork features embedded images (eg a multichannel PSD that must be embedded for Envelope Distort action) it is clearly seen the results with and with AA active are different. Only without use of AA will the colour values remain faithful to the original pre-distorted image.
Whilst I would expect some changes along edges, etc. that would benefit the most from using AA, it is seen across the entire image. This is not correct and renders the Envelope Distort function unusable for these cases.
Thanks for reporting this issue, Illustrator team really appreciate this.
We are able to reproduce this issue and investigating it further.