Check, whether you accidentally set your comps to raytrace 3D. For anything more we would need detailed info about your prefs for caches, GPU acceleration (if available), MP rendering, audio and so on. Quite possible that you updated something on your system and it introduced an incompatibility in those areas or you have a tainted cache and need to flush it.
Hi, Mylenium. Thanks for the response.
Yesterday, the slowdowns/freezes were getting very serious. At one
point, the whole system completely froze (...but, again, seemingly only
triggered by AfterEffects, while other programs, which a far more
complex project, ran fine).
I kept the system off for the rest of the evening, and booted it up
again this morning.
On bootup, I got an 'overclocked failed' error (...I never knowingly
overclock any of my computers).
I checked all the settings and temp/fan readings. Everything seemed
to be okay this morning, as far as that was concerned.
I just now loaded up After Effects, and simply loaded about 8 still
images (at once, using the Import feature), selected them all, and
dragged them onto the Create New Comp icon.
After Effects then froze briefly (more than the usual processing
delay), and I got the usual 'Not Responding' message in the window
header. Once it regained control, I tried dragging the images on the
icon again, and this time it did it fine, and created the sequenced
image comp I requested. The preview so far is running fine.
I did check now to see if the comp was set to RayTraced, but it's not.
It's very odd... It doesn't appear that the freezes are being
triggered by CPU intensive actions, but simply actions themselves.
Simple things like clicking on a tab in an almost empty project can
trigger a freeze/delay, as it the CPU is being massively bottlenecked.
Meanwhile, the task manager is showing definite CPU activity, but
certainly not red lining levels.
So, it SEEMS like it's not the CPU being taxed... and I'm not sure if
it's AE stumbling over itself. I suspected maybe a flaw in the drive or
RAM, but other programs seem to be running fine (again, with complex
All I can think of is that some GENERAL system in AE is getting
tripped up for some reason.
Cache prefs: Set to a secondary drive (lots of space)
Disk caching: On (to secondary drive), although I've had it on and off,
with same results.
No other programs running. 4 gigs reserved for other apps (32 gigs ram)
GPU acceleration is on. I'll try turning that off, to see if that makes
MP rendering generally off, although I tried it on, with same results.
I have that simple (8 images, sequenced in a single comp) test project,
and AE is acting really bad. Almost every click causes a freeze
(...delay, then the screen gets whitened when you click again, and you
get the 'Not Responding' message in the window header). Seems to
eventually come back, but then often does the same freeze when you try
For example, after the last freeze resolved itself (by me just letting
it sit), I moved the pointer up to the Window menu in the header, and
clicked it... causing the same type of freeze. That has now resolved
itself, and I can (currently) freely click on things without any delay.
It's almost like it's a condition that comes in (regular?) waves...
Like a slow pulse, where it will delay your action if you do it during
The system itself seems fine. I'm wondering if it's not some 'regular'
event or activity in AE itself that is occurring in the background, and
is not corrupted somehow. Does AE have a regularly occurring event
(...cache cleanup, background rendering, diagnostics?) that might be
messed up, and may be bottlenecking the system when it occurs?
The only recent update I can think of happening would be perhaps the
video card driver or the usual Win7 system updates (critical ones only).
I should check Photoshop, and see if that is affected.
Right now, the system is running smoothly, like nothing every
happened. It truly seems like it's just an occasional thing.
I would normally suspect overheating, although this morning's freezes
happened right after the initial startup (booted up PC, booted AE,
experienced freezes on simple things, but now it's (currently) running
just fine, after about 3 temporary freezes).
As far as audio settings, I normally have a Layla3G (external audio
interface) for the audio, but that is currently shut off. I've had it
shut off for months, though, and this situation only just started yesterday.
Just to be sure, I set the audio to AfterEffects WDM Sound now.
The only recent update I can think of happening would be perhaps the video card driver or the usual Win7 system updates (critical ones only).
If it happens again, try rolling back to an older graphics card driver. Also, which GPU are you using? And, more importantly, what's the exact version number of AE CS6? Is it 11.0.4?