Object family get disconnected and move randomly

[Slalonde99]

After I open my project this morning, some of the sprinklers got disconnected, moved away and connecting pipes got deleted. Those sprinklers are generally hosted on a ceiling, but since the ceiling is sloped I prefer to host them on a work-plane. All the sprinklers associated with that work-plane moved except one line have moved. I think the ones that did not moved were the first ones I drew and then used copy/paste.Havind said that, I have others (same family) hosted on an other work-planed that did not move that were also copy/pasted.

I work wth Revit 2021.1.8

Thanks for your help,

Sylvie

[hmunsell]

if I understand correctly, these are live in your model, and some moved and some didn't.

• Same Family, Same Type?

could you upload the family you used for us to look at?

[Slalonde99]

Here is my file.

Sylvie

[RLY_15]

Has the work plane moved and/or is it referencing some other element to define its position in space? Are you the only user in the model?

[Slalonde99]

It is a project on the the autodesk cloud with design collaboration, but I am the only who opens this particular model. Architecture model should be frozen (nothing in the architecture should have moved).  I closed the model yesterday and re-opened it this morning. The ref plane is not referenced; it was created with a "pick line" on the ceiling. And it has not moved.