When importing a design from a KiKad project, all of the components on the PCB are set with X Y Location = 0.
This means that when a component footprint is changed, for example when swapping an existing component to be a component from the LCSC library and selecting that footprint, and that update is subsequently applied to the PCB the 'Replace Component' operation places the replaced component at 0,0 on the PCB. So, if you replace multiple components, they all get moved to 0,0 on top of each other.
For example, I import this KiKad project: [https://github.com/AnaviTechnology/anavi-light-controller](https://github.com/AnaviTechnology/anavi-light-controller), I then update some of the footprints/components to be LCSC compatible components, and I update the PCB. All the components get moved to 0.0 when 'Replaced'.
Selecting the connector on far right - location is 0,0. This is the same on ALL components on the board.
Project shared as: [https://oshwlab.com/julian.n.robbins/ANAVI-Light-Controller](https://oshwlab.com/julian.n.robbins/ANAVI-Light-Controller)<br>