yesterday this problem happen when press play bottom the review not work
also timeline not moving
i use AE cc 2018
Windows 10 64 bit
Ram 8 GB
you can see the play bottom is square shape and no motion appear
When I leave AE open and take a break, a lunch (or leave it open overnight ), when I come back and hit the spacebar, it will play it once without sound and when I stop it and try to play it again, it does nothing. I can scroll the timeline and it composition updates, but can't play it back anymore. When I purge all the cache and memory it cleans it up and it also caches/renders it internally (green bar fills up) but it won't play it. When I check "cache before playback" on Preview panel then it time cursor will follow the caching process, but no way to really play it back in realtime with sound.
Restart always repairs it. My fellow animator next to me has the same issue.
Not really the dealbreaker type of thing, but kind of interrupts the flow every time it happens.
But, I figured it out
It seems to be an issue with audio hardware (and monitors connected with audio-supported cables). When I (1) removed external devices from windows audio settings and (2) changed audio hardware (File > Preferences > Audio Hardware) back to Speakers it started to playback my preview (AE needs restart to get the audio back though). (3) If you have headphones connected to the monitor audio output, then
This kind of explains the issue (and my situation after leaving AE open):
"When an audio-supported video cable is being used such as a DisplayPort or HDMI cable, Windows may change the default audio device to the audio-supported cable thinking another audio device is being used. The issue may be seen to occur when a portable is coming out of sleep as the system is detecting the audio-capable cable first."
Thanks for sharing.
I've been having this issue for a while now and Adobe can't do anything about it. I've had tons of customer service reps screen share and try and solve it but it never worked, just more and more unrelated invasive computer exploration. Adobe's customer service has a tendency to focus on the customer's tech and prowess over the actual defects of the software.
I can't believe this is was actually the problem. Thank you Maido.
I faced the same problem, but for me I had to solve it a little bit differently. I went to the sync settings button in the top right hand corner, it has a gear and two arrows in it. Right click the icon and then select clear settings. Then just restart After Affects.
I created an account just to say this - thank you so much Dallin!
Best solution ever! Thank You a lot!!!
Yo shiiiie , thanks a lot i was gonna throw my laptop away thinking some hardware issue is there
I unplugged my 2nd and 3rd monitors and now the preview is working after restarting after effects. Thanks so much 🙂
I may have spent all day on this issue as I'm doing a work project and have to get it done. Just logged in to say thanks for the quick solution.
Post #18 & #31 #14 are exact useful solution for me.
I have same issue . After purge whole caches and switch audio hardware , it works perfectly.
My AE version is CC2019. The issue is continuously be reserved until 2019.
However, thanks to crewdev &_Maido_ & khadarshameer
Love u guys!
I tried this :
Composition -> Preview -> Uncheck "Play Current Preview"
It worked. Hope this can help u guy.
Here's a ridiculous thing to try. Make sure the stoopid eyeball is clicked in the preview window.
Thanks this fixed it for me i just changed the audio hardware and it worked fine right after 🙂
Thank you! This sorted the issue for me immediately. Thinking I'll switch from HDMI to DisplayPort to avoid the issue. Cheers!
Thankyou from 2020
Switching sudio output to speakers fixes it.
I had a similar problem, i was not able to preview anything after i left running AE for few hours. I tried many thing including restart, finally came to this post and just turned off my bluetooth audio connection and vola it renders in a flash, WOW . btw i am using AE on MAC.
It works! I was connecting headphones to the monitor out minijack. But, disabled sound device (in this case the Benq Monitor) AND reboot Windows. The in AE go to prefs/ Audio Hardware and Audio Mapping. Now with headphones connected directly to the CPU the previews are OK with usual key 0 numpad. Thanks!!
THANK YOU!!! This worked for me! I didn't even have to restart AE, I just went to Edit > Preferences > Audio Hardware and changed my "Default Output" from my headphones to my laptop speakers.
FINALLY! This worked! Thank you!
Still run into this issue several times a day in 2021...
i literally can not see the preview panel it has disappeared what do I do now
For people out there that want to defend this FLAW from adobe just know this. When I use Boris Effect Silhouette - roto paint software or Mocha Pro, I never have this DUMB preview issue with the cache or clearing the cache. You just set your project up and define where your cache will be and if you have enough space it WORK! I can playback any resolution as long as I have enough ram. I have 192 gigs of RAM and a dedicated 2TB cache drive. I work in silhouette or mocha and can playback realtime playback 4k withhout having to do anything! Just caches the frames then BOOM playback full res. Some where between 2005 to 2010 ADOBE got rid of multithreaded rendering and its been a PITA for literally YEARS. It used to be a champ and crush PREVIEWS. Now in 2021 I am still going to the media cache and clearing.. ALSO in these other programs like Silhouette and Mocha Pro they have the ZOOM set by 10% + - increments.. So you can get real close and zoom in or zoom out and find the area you need to examine... AE has been stuck with 100, 50, 25, 10 for literally 28 years!!!! They never thought it mattered I guess. But USE one of these modern software packages Like silohuette and Mocha and you will see HUGE PERFORMANCE and simple ZOOOM IN AND OUT capability of a modern program in 2021!!!!! ADOBE doesnt think anyone has noticed they stink with upgrading the product. This program should have been RECODED and REDEVELOPED YEARS and YEARS AGO!!! ALL OF THESE SUBSCRIPTIONS..THEY ARE ALMOST AS RICH AS APPLE!!!! AND WE SHOULD HAVE REALTIME VIDEO EFFECTS IN 2021!! NOT CHECKING THE FREAKING CACHE!! WHY ISNT IT SMART ENOUGHT TO CLEAR THE CACHE OR ASK YOU OR COMPRESS IT OR WHATEVER!!!