Why when we force a designation the line should normally appear in yellow to signal that it is forced but not on all. see image
If we force a designation of a part in the nomenclature, this info is stored or? In 3D or in 2D file? Because it does not impact all the other 2D planes using this part but that some.
Anything that is forced (broken link) is only valid for the open file. It doesn't impact the other models. If everything is not in yellow, maybe a bug (forcing the nomenclature number for example personally shocks me) or simply not forced and therefore mapped
As @Cyril.f says, it all depends on your response to the following message:
Keep link => The Designation is changed in the 3D Break Link => The Designation is now just text stored in the plan nomenclature.
On my Solidworks (2022 sp4): Only changing the Item Number (balloon) changes the cell to Yellow, even if it is sometimes necessary to hover over this cell to see the color change.