Working on another grid of 50mil in the Schematic Editor leads to all sorts of problems, and you’ve started to encounter some of them. Your schematic has already become off grid, and instead of trying to remember on what sort of things you did some things, it’s much better to fix the underlying grid issue. Luckily in KiCad V6 this is relatively easy.
to do this:
- Set your general measurements to “mil”
- Right click on the grid and select “Grid Properties”. (Or: Schematic Editor / View / Grid Properties)
- Set the grid to "50 mils (1.27mm).
- Zoom out and draw a big box around the whole schematic:
- While everything is selected, right click and then select: Align Elements to Grid from the popup menu.
Connections (both wires to pins, and wires to hierarchical pins) should look clean, like on Mum_24V and on Mum_GND. The other two wires are not connected properly. Mum_A shows a connection dot, which is KiCad’s attempt to try to “fix” something which should not have to be fixed. The little green square on the Mum_B wire is KiCad’s way of communicating that a wire end is open and it does not recognize the connection at all.