@Vaz123, thank you for pointing this out! I fixed this one but its a deeper issue that will require a new build to fully fix. When the analysis is saved with the YouTube controls set to “set start/end” (this one was saved that way) rather than “test the sync”, the sync doesn’t work once it is played through the player in the song database. Next build of Hookpad player will have this fixed.
EDIT: Just pushed 2.12.5.1 build of Hookpad player that fixes this issue.