Stud wall under attic truss

[WWilts]

New build in progress.

Stud wall under attic truss. Fix to truss? Are cracks in plaster likely to develop when truss deflects with loads?

If so, is there a trick to reduce the risk of cracked plaster?

Perhaps some kind of movement joint material between head plate and truss tie beam?

[PeterW]

Do the ceiling first and then do the stud below and you’ll get less chance of a movement crack. 

[WWilts]

9 hours ago, PeterW said:

Do the ceiling first and then do the stud below

Builder schedule is stud walls first (already begun) & later ceiling, for better or worse