I have had numerous problems with After Effects since the last two updates, and after a full CC uninstall/reinstall, things are up and running. HOWEVER, After Effects seems to have lost the ability to use the mouse wheel to zoom in on more than one preview window. I use 2 Views - Horizontal primarily and no matter the settings, window size, or mouse I use, After Effects will only zoom in on the left window. No matter where I hover the mouse cursor, it ONLY zooms in/out in the left most window. Is there a setting I'm missing? Some button I've clicked or setting I've accidentally unchecked?
I use the Windows version of Creative Cloud.
This issue (mouse wheel scrolling in a multi-view Composition panel only zooms the first view) is a bug in After Effects CC 2015 (13.6). We have a fix currently in testing for this bug, and hope to release it with our next update which is tentatively scheduled for about a month from now. Our apologies for the disruption.
Until the fix is available, the keyboard shortcuts for zoom (Command/Control and +/-) will work to zoom the selected view.