I have 1 part. I insert a 2nd part into the 1st part. The 2nd part has a threaded holes in it. The first part shows fine as it was intended, even the thread call-out works, Now if i use ANY type of pattering on the part, i loose all info/ties to the tapped hole in the "patterned" bodies. it like the "threading" does not get patterned. HOWEVER, the Seed (original inserted body) to the pattern is still good & shows the treading.