Colormatch between Premiere Pro beta and After Effects beta via Dynamic Link does not work

[Danero_AC]

Colormatch between Premiere Pro beta and After Effects beta via Dynamic Link does not work. Now that I can work in the ACEScct color space in Premiere Pro beta, I am very happy with the output of my SLOG 3 footage. It was also announced that I would get the same colors in After Effects via the Dynamic Link, but this is not the case. No matter which color space I use and how I interpret the clip, the image in After Effects is far too bright and the highlights are completely overexposed. It doesn't matter whether I create a project using Dynamic Link or manually. It also doesn't matter whether I use the color space selected by Dynamic Link (which is actually the right one) or set it myself.
Here are the pictures for comparison.
I am using a MacBook M3 Max with Sequoia 15.3.1.
Premiere Pro and AfterEffects are also up to date (both 25.2)

[Shebbe]

The announcement was not about appearance in After Effects but rather that the Dynamic Link clip would be treated the same and remain managed in Premiere. The color management in After Effects is still the old one which does not have tone mapping hence the 'blown highlights'.

There are many ways to tackle or work around this. One could be to disable AE's simulated output (a very stupid way of saying the working space is being converted to display space) which you can do in the viewer. Then add a LUT on a guide layer that converts SLog3 to 709. You could use the 'official' conversion from Sony. It's not the same image of course but for compositing theoretically you only need a viewing reference.

Another option is to use OCIO ACES instead but I forgot if that would still propagate correctly back to Premiere. Not at a machine right now to check.

FWIW I wouldn't run any actual productions yet with the current beta, lots of issues still especially with ACEScct management. And it'll probably take a while before AE gets the same kind of management implemented.