Are audio source markers broken?

Hi guys,
I love the feature to sync your scores with YouTube videos as the audio source, but it's been a few times already that something weird seems to happen. I've set the YouTube audio source on my videos, perfectly synced with the score measures, but after a few days, when I come back, those audio source markers are out of sync for some strange reason. Is this a known issue that I'm not aware of?

This has happened to me more than a couple times already. Any one else has experienced this?
I appreciate all kinds of feedback regarding this issue.

Thank you!
David Badillo

EDIT: PS >>> After taking a second look at them, when I load the markers in edit mode for the audio source, the first marker seems to always load all the way to the left, regardless of how it was originally set up, and then the rest of the markers load relative to that first marker. Is it possible that there's a bug in the program that makes the first marker always load at the very left, and not where the user placed it in the first place?