Requiring a track matte to be right above the layer it modifies seems like an archaic convention at best. Get rid of that requirement and make them like parent layers which can be anywhere and used by many layers.

A UI of your effects that allows you to layer effects in a previewer to see the results before applying. This would be especially effective if you have a lot of effects and not sure what they all do.

Some effects like camera lens blur are computationally expensive. It would be great to be able to have a proxy effects such as Gaussian blur during previews, but at render time turn off Gaussian blur and turn on camera lens blur. Or perhaps have a setting that only turns it on at render time. I imagine it could be a drop down that says "off until render." I know I can turn off all effects on a layer or composition, but then I have to remember to turn them on before rendering.

Please move this to the top of priorities.
Since we're now all moving towards ACES which requires working in 32bit, not having a grain effect that works in 32bit makes most of the compositing work almost impossible to do. It's hard to think of an effect that doesn't require grain matching with the background plate, and now every time we apply the add grain effect all, overbright values get clamped, so we CAN'T use the effect on any new production :/

After Effects doesn't recognize SWFs if the SWF is placed on a server. Full brakes the whole workflow for any studio using Animate CC...

The reshape tool would become way more helpful with digital beauty work if AE had a way to parent Masks to a Null object that received tracking data from Mocha.

Was working with 2020 for 5 min.
Out of the box in comparison seam to be slower on a comp of a resolution of 5400x1080, as compares to AE 2019.

Certainly twice(!!!!) slower from AE 2019 in reading JPG SEQ res:5400x1080.

Did not checked it further.

Both Apps synced with their preferences.
Both of them have the Cache option disabled.

Blending modes (especially screen & add) are completely unpredictable in 32 bit space. They're essentially useless now. Build a system (or a new blending mode) that allows screen and add to behave the like they do in 16 bit

When you're animating a mask on a layer that has effects applied, the mask doesn't update live. You have to purge the memory or disable all the effects on the mask in order to be able to see the updated layer.
We need to see the mask updated even with effects applied.

Everytime I do compositing with cryptomatte (using it as a luma matte for an asset) I have this error (see picture) and my after effects crash.
Thanks if you can solve it.

Need a native edge blur tool similar or better to the key correct suite by RG.

Grouping can be improved, by grouping the selected items automatically in a Group, in stead of adding a Group (= a folder) and then drag all items in there.
Furthermore, I would the Group to automatically update any involved expressions. Currently expressions are broken by changing Shape Layer hierarchy, and have to be repaired manually.

I want to be able to divide the position of the transform of the effect into dimensions.

Because the expression of animation of keyword spreads

エフェクトのトランスフォームの位置を次元分割できるようにしてほしい。速度グラフでの表現の幅が広がる為。

an effect to create text via effect would be useful to keep your composition compact. imaging you have to create a button, you right now need at least 2 layers. 1 textlayer and 1 shapelayer.

with an text effect (like the timecode effect)
you would only need 1 layer.

But the effect should respect the layers coordinates,
not like the timecode effect, which ignores them.

A Vector Field Effect were you can paint your motion fields in 2D and use them on textures and particles etc.

Something like this in 2D:

https://hocuspocus-studio.fr/tools/product/vecmap-tools/
https://vimeo.com/254351991

The actual particle system in AE is out of the early 2000s.
So please develop a new 3D particle system with a simple node based UI and interesting operators like physics, turbulence, motion fields etc.

It should be something like Trapcode Particular but with a simple node interface like Tyflow.

actually it fits the layer size and stretch the Matte layer.
So if we use a layer with a different ratio in the composition it not useful.

With this option, it would have the ability to ignore transformation like rotation size and position... so the Set Matte would work as a Track Matte Layer and we could animate behind it.

It would safe a lot of layer count and space.

After Effects needs native ST-Map support to handle a myriad of compositing functions, but I need it to handle the Distortion & Undistortion ST-Maps from 3D Tracking & match-moving software like PF Track. This is a standardized work flow in Nuke and is seriously lacking in AE. I know that there are 3rd party plug ins for this, but this is a compositing program and should be built in.