Movie out of sync??

I have the chart for Abnormality Dancing Girl downloaded, when I first downloaded it it worked fine but out of nowhere the chart isn't in sync with the movie anymore even though I haven't messed with it at all. It's annoying, and it's been like this for MONTHS. Is there any way to fix this? I saw an option when watching the movie in PPD that said "Change Trimming" and I thought it could potentially help but I couldn't figure out how to work it. Any help is appreciated.

so that the latency in your chart does not automatically jump while playing, you need to go to the KHC - PPD folder and go to PPDConfig...then select the Disabling Setting item and tick the Disable auto adjust latency line.