Hi, do anyone know how to make this transition in this video at 1:20 - 1:22?
This looks like a CC Image Wipe transition with the border softness cranked way down. The color values are used to animate opacity. You could also do it by using a copy of the footage as a Luma Track Matte and applying color correction effects like levels and messing with black and white output, colorama and messing with the Output cycle or just about any color correction tools that you could use to manipulate the black and white levels of the image. You could apply levels and bring the output white down to something less than 254 and then add the Threshold effect and animate it from 0 to 255 to create the hard edged wipe.
If you don't know how to set up a luma matte then type luma matte in the search help field at the top right corner of AE of just use CC Image Wipe.