Preview is stuck in a loop and is unresponsive

yeaah I experienced this problem too .. if the timeline reach the end of composition it looping and cant be stop

Spacebar preview looping never end !
Adobe never want to fix it.

I've read through many threads reporting this same problem. Essentially as soon as I start a preview, it will loop forever without end. No way to stop it. It also brings the entire computer to a crawl. This happens even if all I do is create a shape layer and do nothing to it. Previewing that alone loops. Only way to stop it is to kill the program.

I'm on a mac using the latest version of Catalina.
AE is version 18.0.0.

Happy to share anything else needed.

Hey Adobe, if you are listening, can you please fix this rampant software bug?

@4318039 Terrasi: Do you at least have them set to AutoSave every 20 minutes or so? You shouldn't be losing hours and hours. (well, I guess if that's cumulative, I can understand that)

And if another forum user starts with "you must be new to AE...." or the like, please just leave. If you use Premiere or AE and DON'T experience scores of bugs and crashes, you're the one who's new......

I have lost HOURS AND HOURS to this bug that Adobe has been saying it fixed since 2016 though it still arises in every version. AE and Premiere are the most expensive beta software in history, and this company will only spend money on new (also broken) programs.....

Same problem, updating to v17.7 doesn't solve. Happens across multiple projects, resolutions, etc. I have to force close the application every time I accidentally drag footage into the project window while RAM previewing.

Windows 10 Pro, i7-5960x, RTX 3090, 32GB RAM, SSD

I'll even take a preference option: Pause Preview when importing new files, as it always crashes when importing an item if the preview is already running.
I have to restart every time.
Incredibly annoying.




Windows 10, Ryzen 7 3800x, RTX 2070 super, 32GB RAM, SSD

Similar issue. 17.5.1 (but has been going on for months now) Windows 10, RTX 2060, 32GB RAM, 400GB external T7 SSD for cache

Seems to be consistent that if you preview, then don't edit anything but preview again, then it seems to go into this unresponsive state where it will build the preview in RAM (green line gets filled in if it isn't already) but then AE refuses to play back the preview until you close/restart AE (and AE usually goes completely unresponsive at this point too)