The source is 24fps, but what you gave Harmy has a frame-rate of 29.97fps. All the original frames are there, but more than 24 of them are being shown every second. To restore the original frame-rate, you have to slow the video down.

I don't know what you did with PG and PSB. If I can find them, I'll have a look.

EDIT: Sorry, Puggo. I didn't see your second post. The setting you used in your encoder probably explains why you didn't have to slow down PG and PSB

EDIT: I found PSB. Everything looks fine, so what you did obviously worked. :D

EDIT: Harmy, that problematic clip looks just the same as the others to me, and the same script works.