I have something strange going on with my slots (created in SW 2013). The center axis of the slot goes missing, and in turn my assemblies lose control of themselves. If I try to re-assemble the features to the center axis of the slot, the center axis will not show up (no matter how many rebuilds I do). If I go into that specific part and redefind the slot the center axis will show up (I do'nt actualy redefine anything). I can then go back to my assembly and do a rebuild and all will be well again.
Has anyone noticed this? This is on a fairly large assembly, so I'm wondering if that's the issue.