Thanks @fenderman...
So in reading the help file:
Triggered + Continuous. This option is similar to the "Triggered + Periodic" mode with the important difference that the file is recorded at a normal playback rate and does not require "combine or cut" in order to create a continuously...
After twiddling with things, I notice it has to do with the duration of the trigger buffer. Right now its set to 5 seconds, if I change it to 3 or 10, the video will play for that long, and then freeze.
Nothing changed in my setup (maybe windows 10 updated?). I verified I have the latest Intel HD 530 drivers and I'm running the following:
Cameras: 5x Hikvision DS-2CD2032F-I
FW: V5.4.5 build 170123
Enc: V5.0 build 170105