Hello, I also have this issue, how did you solve it?
I'm trying to attach a notepad (called "notepad") to a desk (called desk1) and rotate it 90 degrees. I feel like I've tried every solution suggested in them concerning "setDir" and "setVectorDirAndUp".
For instnace (used in the notepad's init line):
notepad attachto [desk1,[0,0,0.4]];
notepad setdir 90;
notepad setpos getpos notepad;
(this one leaves the notepad on the ground, rotation still unchanged, even if I change it to "setDir 110" for instance)
And as the examples suggests on BIKI:
notepad attachto [desk1,[0,0,0.4]];
notepad setVectorDirAndUp [[0.5,-0.5,0],[0.5,0.5,0]];
(nothing happens by adding the setVectorDirAndUp line, no matter the numbers)
//Noddan