It is very annoying as it stops rendering when there is a queue without warning that there is anything wrong. When you stop the queue it comes up with a warning dialogue that is blank because the program has hung before it can put text into the dialogue box.
You left out the most important part: Which version of AE? if this is AE CC 2014, then try not using PNG and instead use compressed TIFF. PONG is somehow a complete mess in CC 2014...
Thanks Mylenium. It is CC2014 fully up to date. I recently discovered how convenient .png is for alphas but I could happily revert to tif or tga. I like image sequence for intermediate media because if there is an interruption then you can easily pick the render back up and not have to start from scratch.
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I tried changing to tif sequences and it still crashes at the end of the render - with render multiple frames on I have noticed it comes up with an error about missing a frame and changing the memory per CPU settings and auto save seems to want a hand in at the completion of a render too - could it be both colliding? I still cant read the error message as it crashes before it has written it. Maybe avi with alpha . . . .
I have been using .avi with alpha - at the end of a render it warns that as a result of multi a frame wasnt rendered then does an autosave then hangs
it is possible that it doesnt hang if Premiere Pro isnt open. These comps all began life as linked comps that I then took out of the link (or so I thought) so that I could render the media separately to reduce the overhead.