After reviewing this report and discussing how the mouse wheel is used in 3D comps and the intent of the new behaviors with the camera tools in After Effects 17.5, we’ve decided to make a small change.
In Preferences > 3D, the Mouse Scroll Wheel Behavior option will now default to Magnify Composition, instead of Dolly Camera.
Given all of the factors, we concluded this is the best option to balance typical workflows and the new camera tools. And if you preferred the Dolly Camera option, this is an easy change to make.
This change will be in the next update for After Effects Beta (version 17.6, build 42 or later). Please test it when available and let us know if this feels like the right change.
An error occurred while saving the commentmrRG commented
Same problem here after upgrade to AE 2020. All I can do is scrub through the timeline. Preview doesn't work - still frame is all I see.
Model Name: Mac mini
Model Identifier: Macmini6,2
Processor Name: Intel Core i7
Processor Speed: 2,3 GHz
Number of Processors: 1
Total Number of Cores: 4
L2 Cache (per Core): 256 KB
L3 Cache: 6 MB
Hyper-Threading Technology: Enabled
Memory: 16 GB
Intel HD Graphics 4000 1536 MB