I don't have an answer but I can also confirm that 6 developers I know have seen similar behavior.
I am generating ActiveX objects through VB and inserting them into LabVIEW 6.0.2 on Windows NT. About once every couple of weeks or so, upon inserting the object into the container, the container is empty after the insertion is done.
It should be noted that the objects inserted have been used sucessfully for weeks on end without modification or incident. Also, after this problem occurs NO other ActiveX object can be inserted or even exist on the Panel of LabVIEW 6.0.2.
I have seen this bug in LabVIEW 5.1.1 and I have talked to other people at the advanced uses group meeting (LAVA) (Mt. View office - Bay area) that have experienced a very similar problem to
this.