Project Only Renders Partially

[alinakaray]

I just edited a 23 second long video on After Effects CC 2018. I went to render it, put all my usual settings and made sure it rendered the whole composition. It then fully rendered, but the video was only 10 seconds long. I did this two more times, making sure my settings were normal and it hasn't changed. Any help?

[RobShultz]

It looks like you have the sunrise comp selected in the Project Panel but should be rendering out the Screen Shot 2019 comp. I'd try selecting the Screen Shot 2019 comp in the Project Panel (look at the tab in the timeline) and then try rendering.

[alinakaray]

I just tried selecting that in the project panel, it still only rendered 10 seconds.

[alinakaray]

UPDATE: While it is rendering, it shows the whole time frame being rendered. When it gets to the 10 seconds, it'll just freeze there for a while and then just save what it has.

[Vishu_Aggarwal]

Check the render settings > which is set to default to Best Settings which have the Time Span set to "work area only", check the work area  in the comp timeline or try changing the time span setting to the "length of the comp" 

[alinakaray]

I made sure my whole video was in the work area, and did work area only. I also tried selecting length of the comp. My whole video time shows while its rendering, but it will render halfway and then just stop and save what it has.

[Dave_LaRonde]

What happens if you import the file into Premiere Pro and put it in a timeline?

[alinakaray]

I don't own premiere pro.

[Dave_LaRonde]

FYI, you don't OWN Adobe software.  You rent it.  If you stop paying the monthly rent, the software stops working after 30 days.

And unless you're renting only After Effects and nothing else, you can download & install Premiere Pro.

[Dave_LaRonde]

The reason I mention Premiere Pro is this:  I suspect you rendered a lossless file, you're looking at the file on a viewer, your computer can't keep with the file's bit rate, and the playback is freezing at about the 10-second mark. 

Looking at the file in PP will show you its true length, and it might even play it back in real time.  You can also import the file into AE and scrutinize it.

[RobShultz]

You may want to try setting the output render path to your desktop and see if it will render the whole composition. I don’t know your drive configuration but this will ensure that it is being built to a local drive which may help.

[alinakaray]

I've actually had it going to my desktop during all of my tries, and they are all 10 second videos.

[alinakaray]

Just tried exporting it with premier pro and media encoder. It failed, and attached is a screenshot of the error.

[RobShultz]

If it keeps stopping at the same spot that part of the video in your composition may be corrupt.

Maybe look for glitches in that video or try doing an export without a potentially corrupt video to see if that could be the problem.

[alinakaray]

The rest of the video has a bunch of photos with transitions, and all of the video plays in the RAM preview. Is it corrupt if it plays?

[RobShultz]

yes... it could still play but have a corrupt portion that may prevent it from rendering. I’d look for potential technical issues where the render is stopping and see if you can work around them. Good luck

[Martin_Ritter]

Set preview to full resolution, active motion blur, let it render. Preview will fail for sure around 10 secs. Go to the time mark an investigate. It could be everything from a plugin to a corrupted image. Just make sure you are at full res and motion blur in every comp and precomp, otherwise you might not find the issue.

*Martin