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Question

Flickering Cache bar / unable to cache

Forum|Forum|4 years ago
July 27, 2021
7 replies
1326 views

hello everyone,

since yesterday after effects is suddenly unable to cache my compositions. Instead of caching it like it used to, the cache bar just randomly flickers all the time. I already tried to purge the caches and everything multiple times, selected new locations for them, changed the resolution and minimized my project files. I m already working with precomposed comps and proxys. Everything behaved fine before. I have tested to open a new project and imported a clip into the compositon to see if it occurs again. It worked perfectly fine. The sequence was cached and the green bar behaved normally. Has somebody experienced this problem and knows how to solve it. I have worked tones of hours on this project and would appreciate every helpful advise.

This topic has been closed for replies.

P

p.gelas@stefi.gr

Participant

Problem solved!

Check if there is any warp stabilizer effect on any footage.

Press Analyze and voila la!!!

B

Bhuvan35215760qu28

Participant

Thank you so much!

jand58450261

Participant

has anyone found a solution to this. I'm having the exact same problem. Cache playback is impossible right now. It keeps on refreshing/flickering.

2 things I noticed:

A previous project (older) does not have the same problem, so it seems project related (wrong save?)

If I save the file (ctrl + s) inmediatly after an asterix (*) is added to the titlebar, after the filename, suggesting that the scene has been changed. So when you close the scene after saving, it asks you if you would like to save the scene, although you haven't changed anything.

jand58450261

Participant

other things I have tried that did not solve the problem:

- rebooting

- clearing disk cache

- changing the project settings video rendering and effect from "mercury software only" to "mercury gpu acceleration (cuda)"

P

Pat5FD8

Participant

has anyone been able to figure out a fix because I am also having this problem. it seems like when i go into my preferences everything looks like its working fine, but when i close and go back to my timeline it does the exact thing happening in these videos....

S

sebastien5E15

Participant

Hey there,

I am having the exact same issue! I have done everything you have mentioned as well and it's still flickering not cacheing and I am unable to preview my comps in cached timelines. It just jitters along exactly like your link:

https://vimeo.com/340352754/9dae0abd1c

Did you end up finidng a solution to this?

I am unable to do client projects because of it 😞 deadlines are coming

Thanks

Mylenium

Legend

Have you tried actually rendering preview clips via the render queue? This may at least give you something to work with and in most cases users have reported that this remains unaffected by preview/ cache issues due to how the rendering works. Other than that if the data is on an external drive I would suspect some systemic issue. Perhaps the drive volume is not connected properly or over the usage time has filled up with redundant file restore information, causing data fragmentation and slowdowns. Same for internal cache folders. I'm not a Mac guy, but from reading I gather that using File -> Info you should be able to clean some of that up. Otherwise I guess an excursion to the disk utility might also provide soem clues and potential fixes.

Mylenium

Legend

Any chance your ProRes CoDecs simply got busted by a botched update of the Adobe apps, some system update or some third-party software (GoPro et al)? In such a case try a clean reinstall at least. also verify that the caches are actually cleaned out properly and AE isn't attempting to use data from your proxy files. Other than that this should work, but who knows...

Mylenium

M

manuels65919685Author

Participating Frequently

So I ve cleaned out all caches and deleted ever after effects folder wich could have stored any data on my system, deinstalled it and reinstalled again. Unfortunatly the problem still occurs. Since I m using an external SSD to store my footage, i ve tried to transfer everything to the internal drive to see if it helps. That didnt help neither. Thats super frustrading because I have to deliver the project and im literally unable to finish it.

Mylenium

Legend

Without any info about your system, your project, cache settings, preview settings and so on nobody can tell you much. From mundane hardware acceleration issues to a specific effect causing trouble this could be anything. You need to be more specific.

Mylenium

M

manuels65919685Author

Participating Frequently

Im working on a MBP ( i9,vega20 4GB). My poject is 30 sec long with a tone of effects ( stabilizator, rotobrush, time manipulate effects, positioning, scaling etc.) I work in a 1080p timeline and the clips im working with are proxys in 540p ProRes Proxy - replacing the final 4k Clips(ProRes 444). I assigned 200GB of storage for disk cache located in a liabary folder where ae saves it natively. I tired to relocade the folder to an external ssd or deskop wich worked without any issues in the past, but havnt solved the problem. The preview settings are on full or half, depending on how much detail i need to see for the change i do. Below is a vimeo link wich is showing how the cache bar is flickering without caching any file to get a usable playback.

#https://vimeo.com/340352754/9dae0abd1c

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