Training Weights and Design in the Dark were bugged towards the end and should have their final fix coming up on here in an hour or two, along with some changes to the background vistas and minor bugs. Apologise for that! I can send you a build that takes you directly to the end of Designs in the Dark if it is.
Ghoul Mischief questline should be complete-able up until the point you finish the thing in the Slytherins' Common Room. If it isn't, please let me know
And thanks a lot and thanks for playing!