We have a problem with overlays that don't auto restart, freeze or hang. Typically we put them on an overlay channel and map them to a button on the keyboard. Our overlays are all using a bluekey. An example of our overlays can be found here: In the example they are not hanging, because we try to avoid it by pressing the little number under the overlay quickly and make the overlay disapear.

We tried many different codecs already, tried to make them very small (a few kb) or very big (20+mb), but the problem is still there sometimes. It's very difficult to reproduce the error, since it only happens now and then. Anyone else who has this problem and a possible fix?

I uploaded some examples.

We use 4-5 camera's, and always use 3 overlays. 1 overlay is the SVO (name), the others are full screen animations.

Sometimes the SVO's hang at 3/4 th of their playback, sometimes we have to open them in the preview window and restart them before they want to play again. Sometimes the animations hang once they finished playback. We then have to press little button with the number of the animation to remove the pauzed animation. It's not always happening, but randomly during the recordings.

https://www.dropbox.com/...9z3dxg/DJ_TOMAZ.mp4?dl=0
https://www.dropbox.com/...atermark_SLASH9.mp4?dl=0
https://www.dropbox.com/..._Festivibe_Main.mp4?dl=0
https://www.dropbox.com/...EXTRA_ANIMATION.mp4?dl=0

Thanks for claryfying Ice. I think indeed this is a harddisk acces issue. It's not a problem of settings, since it's working as supposed most of the time. I will try AVI files, i tried MOV, M2T and mpeg untill now. Do you use large files or heavily compressed ones?

The current setup is this:

Intel 2600 K
Yuan Quad sdi
2 x Decklink 4 K (component capturing)
Mini monitor
16 gb Ram
Gts 450 videocard

60 gb ssd C drive
120 gb ssd drive to load animations from
480 gb ssd drive for recording

We are building a second one though, and with this new one we will be doing bigger festivals. Everything should be running 100% perfect, since we will be doing streams for some of the best known festivals and brands in the world with the new setup ;) That's why I'm now trying to get the smoothest setup possible and eliminate all the bugs and quirks we were facing untill now. That's why I'm posting so many questions suddenly :)

Can you tell us what Motherboard you are using as this could cause the problems you are having.

I use a ASUS P6X58D-E motherboard and it comes with a utility called EPU-6 Engine, if I have the utility on auto when using vMix I get the same problems you are having as the CPU is running at its slowest speed. if I run the utility on high performance the problems goes away as the CPU is running at an higher speed and all videos run perfectly and I am using MP4 videos. See below for Picture of the utility.

Thanks Martin!

By the way, we already tackled one issue:

We always use bluekey to key out some elements of our animations. If the first or last frame doesn't contain enough blue, the animation will not auto restart for sure. We tackled it by adding a blue frame in the beginning and the end of the animation.

We haven't set any triggers, we just remove the animation from the output screen when it's stuck with this little button:

It had to do with overclocking. Apperantly there is an option in the ASUS motherboard to overclock the processor. When it was on it's maximum setting, overlays would hang randomly. Weird, but solved. Thanks for the help!