The Teamcenter Structure Manager enhancement to make the handling of arrangements in Teamcenter more like in NX in that sense, that when opening an assembly, NX will make the "last-saved" or "as-saved" arrangement the active one at the top rather than the default arrangement.
This can result in problems with the use of existing workflows for some customers. They need the old behavior using default arrangement back.
Solution
The default behavior is still to open the as-saved arrangement; to use the old behavior (opening the default arrangement), set the preference BOM_prefer_default_arrangement to true.
This new preference was introduced in Teamcenter Versions 12.3, 12.1.0.8 and 12.2.0.5.
Notes
PR 9594654