We have experienced what we think is a very particular bug and thought it would be great to share it with you for a future fix. Here's the info.
Watchout 6.4 and 6.4.1 (updating to 6.4.1 didn't fix the issue)
Producer: Sony Vaio - Model SF15A190S
Windows 7 Home Premium
ASROCK x99 extreme4
i7 5820 3.3Ghz
on board network adapter (1Gbps)
Windows 7 Tweaking List applied
When reaching a pause cue in an AUX Timeline, everything quickly flashes black.
We are programming a 4200x1920 PNG file into a Virtual Display of the same size and then feeding to an array of 6 blended projectors.
It seems to only be one PNG file that has the problem, but the troubleshooting did't fix that.
The virtual display that feed the projectors are in the Main Timeline which is paused at 0:00.0. (We found that having virtual displays in the Main Timeline worked best in the past.)
We had another display on another tier that was running as a backup and it was doing the same thing
We have the habit of using a pause cue where needed, and adding play cues underneath the pause cue to add notes to ourselves.
Troubleshoot that didn't fix the problem:
-1- Changing/Rerendering the PNG file. Checking that it has 32bit color depth, that it has the same resolution as the other files. We even tried TGA, and JPEG without success.
-2- Deleting the file from the displays so it is pushed again from the producer when updating.
-3- Rebuilding show cache
-4- Upgrading to 6.4.1
-5- Using another producer
-6- Opening all UDP and TCP ports on all devices
-7- Starting a whole new show and importing just the Displays, Virtual Displays, and Aux Timeline and some of the medias.
-1- When moving the show to the Main Timeline on layers above the Virtual Displays, it would stop flashing when reaching a pause cue.
-2- When moving the Virtual Displays within the Aux Timeline of the show, it would stop as well.
-3- Not using Virtual Displays at all and programming the medias in an Aux directly on the displays in the stage fixes the problem.
-4- When keeping the Virtual Displays in the Main Timeline, and the show in the Aux like we usually do, and removing the Play cues that we use as notes underneath the pause cue, resolves the issue...
-5- Also, having the play cue above the pause cue works.
All in all it's an easy fix for a very particular case, but it really made us scratch our heads. Hope this can help users and maybe help you find a bug that can be fix in the future.