Repeated Error AAE-9171

[JingleDjango]

Hello and thank you for taking a moment to read this thread. I'm having some trouble in PT12 with AAE -9171 errors. The system I'm using is pretty spec'd out and the sessions I'm running are nothing crazy (-60tracks) so I'm a little confused about why this keeps happening. It's interrupting my work. I did a lot of searching around yesterday before joining the forums to post this. I hope that this isn't redundant. Some details:

WiFi
As soon as I open the session, PT starts reporting some outrageous CPU usage. This screenshot was taken while paused:


I'm new to the HDx Core system. Should I expect the load to be more evenly distributed? Does 99% as seen below have anything to do with why I would keep getting interrupted with these errors?
(also while paused)


The following screenshot shows a general overview, including the error dialog in question:



The session open is not very heavy with plug-ins. I'm doing most of my processing with outboard. I wondered if this was perhaps a Sync issue with the Sync HD? It appears to be locked and working as expected. Any help would be appreciated.

Thanks.

[JingleDjango]

I will add that I've tried disabling WiFi. I've tried disabling all inserts in the project. Any extraneous tracks have been hidden and made inactive. I should have included this in my original post but I thought it would appear as my signature because I updated my profile as suggested. Regardless, here is a detailed description of the system:

2012 Mac Pro
Processor: 2x2.4 GHz 6-Core Intel Xeon
Memory: 40GB 1333 MHz DDR3 ECC
Graphics: ATI Radeon HD 5770 1024 MB
Pro Tools 12.6 HD w/ 2 PCIe HDx Core Cards
Avid Sync HD linked to HDx Core card with serial cable
Burl B80 Mothership & B52 Converters
All of the above sync'd to an AMS Neve Genesys 72 input console using linear time code. I am using on-board (Encore 6) automation, not the HUI DAW control.

[Carl Lie]

I'l give this a shot but others will know more. I would not be concerned about the 99% on HDX. It's usually the native processing that causes trouble. Typically the HDX processors fill up one by one as you have in you pic.

I do know that many folks have reported issues with El Capitan so I'm guessing that may be part of you issue.

Sometimes trashing your preferences clears stuff like this up. I have gotten that error when I rush things like clicking on a VI window right after it opens or pressing play while waiting for EA files to render.

Hopefully others can help more.

Carl

[JingleDjango]

Thanks, Carl. Downgrading the OS isn't really an option right now, I think. I have some administrative control over the setup but project timelines and personal schedule restrict my ability to do that sort of deep re-organization. I hope that a solution will present itself. The problem is persistent and troubling, considering the obvious expense that's been undertaken to avoid a scenario like this.

[TAMBOR]

I'm a PC guy, not Apple, but the 17,000 idle wake ups gets my attention. Is there something that is turning itself off to save energy and that has to be constantly re-enabled?

[Drew Mazurek]

What buffer?

[JingleDjango]

Buffer is currently set to 2048 samples, the maximum available.

Energy Save features have been disabled in System Preferences.