@kkanter I just wanted to gather a bit more information to send to support.
After having someone from my team look at the v8 software, it looks like the Mirror image icon is still available on the sidebar (image below) and the share icon is still available at the top (which should take you to a Save As window even after mirroring the image). Are these the icons not showing in your software?
That is in my software. However when you copy and paste a mirrored image outside the v8 software it rotates horizontally so you have to flip it back to a mirrored image. Older versions of the imaging software did not have this issue.