Good afternoon, the Audio alignment function does not work in cubase 10.5, when the Align Audio button is pressed, nothing happens, I do everything as in the video, but my double is slightly shifted to the left, I tried all the algorithms 
Hi and welcome,
Sorry, it doesn’t to anything at all (so really nothing happens) or the result is other then expected?
Can you see the wave icon (Time Stretch) on the right side of the Target Audio Event, after you apply the Audio Alignment, please?