Group Instance

[dm0144]

Hello everyone 

Whenever I place a group into the same wall geometry, the door element of the group gets hosted to the side wall insted of the wall it is supposed to. 

To give the full context, I have 3 identical wall groups, with the same geometry and I want to have same group of openings.

The issue arises when I place the group onto the particular wall group. Then the door element gets the wrong wall host.

[rob.pnc]

@dm0144 

On what basis did you determine that they are identical? they are not...the elements' relationship (to each other and the origin of the group are different between all 3 groups 1/2/3

[dm0144]

@rob.pnc   we are talking about group 000. When you move the the group, the origin of the group moves with the group as well. Why only on one instance, when placed, some elements of the group 000 get assosiated (hosted) with the side wall (the group 000 behaves differently on that praticular instance).

Please, give me profound explanation. I don't get it.

[RDAOU]

@dm0144 

No access to Revit atm to give you a GIF ... but my interpretation is as follows:

1. The Group 000 when placed, it attempts to maintain relationship with adjacent walls...
2. the offending Group #3 of wall instances seems to be a copy of group 2
3. The origin of Group #3 has its axis flipped or origin misplaced which is causing Groupe 000 to reorient itself  and the elements therein missing their hosts

[barthbradley]

Nested Groups? That's a documented "no-no".  

https://knowledge.autodesk.com/support/revit/learn-explore/caas/CloudHelp/cloudhelp/2016/ENU/3PP-REV...