Firstly, thanks for the amazing work - great to have this in time for watching before TFA 😃
Just downloaded the workprint and flicking through it - I noticed that there seem to be a couple of grey vertical lines in the background around 0:13:49 - 0:13:52 (019900 - 019970), on the left behind Jabba, I think they appear when he leans forward. I’m not sure if these were in the original, but they look like they shouldn’t be there.
Anyway, keep up the good work 😃