I'm currently using windows 10, I used the compatibility option for windows 8 to avoid BB2 to crash whenever I Open my BB1 files. I cannot replace assets and it is making my work complicated. please get this fixed on the next update... Thanks! FOR THOSE WHO EXPERIENCE HANGING BUILDBOX 2, USE THE COMPATIBILITY OPTIONS AND PICK WINDOWS 8 OR 7. NOTE: YOU CAN'T USE DRAG AND DROP FEATURE.