Sound layer delay after unpause, timing to words now impossible

[Derick777]

So when I'm in my timeline, trying to pinpoint the start/end of a specific word (i do this a lot), i have recently noticed that it takes a second for the sound to start up again.

For example, on frame X, paused, i hit the space bar to unpause it, and the audio doesn't start until 5 or 10 frames after that.
Repeating the exact same steps, still frame X, yields different results. Sometimes the audio will start right where i unpause it. Most times it will start later, and it is 0% consistent. Usually it skips an entire word or two before the audio starts up, making a task i used to do every day impossible.

It used to start right exactly where I unpaused it, to the frame, allowing me to time things really precisely. Now it does not.

What do?

I noticed this right after a recent update, so as a potential last resort, I could try to downgrade to the previous version, right?
To my knowledge, I have changed nothing else about my system in that time. Is anyone else having this obscure issue

Edit: minor changes for clarity

[excited_Genie16B8]

I've not noticed this behavior in 2017.1.2.

[Derick777 · Accepted solution]

ah, it seems there's been an update since i started this project. hopefully that'll fix it, but i dare not update mid project.

[excited_Genie16B8]

Always test updates/upgrades on a second machine.  (You get two activations.)

[RobShultz]

Are all of the files conformed? (No blue progress bar on the lower right side.)

[Derick777]

Yep, been conformed for days, and it's happening even after the program has been running for hours. It's the only thing I have running, too. I'm gonna try to disable the video layer, monitor system temperature, and use a much shorter timeline. I'll update if any of that changes it.