16.0.1 preview not playing back in real time
iMac Pro (2017)
Processor 3.2 GHz Intel Xeon W
Memory 64 GB 2666 MHz DDR4
Graphics Radeon Pro Vega 64 16368 MB
After Effects had been working perfectly fine up until today. I cannot get (ram) preview to playback in real-time for the life of me, which is problematic when you're animating to voiceover. "Cache before playback" is checked. "If caching, played cached frames" is unchecked.
I'm assuming it's just a bug that needs fixed.
The latest (November 2019) release of After Effects includes major improvements to our preview architecture. You should see reliable, real-time playback of cached frames.