So, I am making sprite sheets for a game in unity. Some of the animations require animation within after effects. I then exported the frames from after effects, as a png sequence with RGB and Alpha, to get a transparent background.
From here I want to arrange these frames in Illustrator, perfectly in a sprite sheet sequence.
The problem comes when I try to place these .png files in illustrator. Nothing shows up in the workspace, and nothing is selectable. The only thing that happens is that it shows up in the layers. Even from the layers I can't select anything.
The .png files show up in photoshop and with their transparent background, but not illustrator.
What I have tried...
Dragging straight from finder
Adobe CC, up to date.
MacBook Pro, Late 2011
What are your render your settings? Did you change the alpha channel to straight alpha (premultiplied almost never the right option)? What happens if you render a Photoshop sequence? Did you try opending your PNG files in Photoshop and doing a save as (you can batch process that if it works).
Illustrator only works on 8bit images. Make sure those PNG are not in 16/32 bits.
You can convert them with Photoshop through the menu Image>Mode and select 8bit.
Hope this works.