We purchased this workstation about 8 months ago for the purpose of 4K video editing and animation. It has an NVidia Quadro M4000 graphics card with 3 displayports, 3 of which are currently hooked up to monitors. Ever since we started editing 4K footage shot with a Panasonic EVA-1, particularly in a 1080 timeline for the purpose of punching in, we've been having a variety of glitches that I cannot figure out.
Some outputs have the audio about 30 seconds out of sync, no matter how I render the file.
When I try to watch the timeline without it being rendered, the video blows up to about 200% while it plays, then goes back to normal when it's stopped.
The biggest and worst glitch happens at random during editing. All three screens go black for 3 seconds, then they come back, only now the audio is playing through one of the monitors and not the speakers, activating the Nvidia card for audio instead of the default Realtek Audio processor. Then a dialogue box pops up warning me that a preview file is corrupted, along with "Error Code 3." Some projects will then not open at all, whether I open them in Adobe Premiere CC 2017 OR 2018.
I've called HP support and was told it's likely drivers that are causing the glitch. I was told to download the Softpaq Manager, and install the new BIOS in particular along with other drivers. If that didn't work, I was told to uninstall all the Nvidia drivers and reinstall them from the package found at HP.com. I've now performed all of the solutions that were presented to me and have had no luck in correcting the problem. I am at a loss of what else to do, short of a system overhaul or hardware replacement, both of which will cost us valuable editing time.