Kicad 9 physical stackup keeps changing when moving from mm to mil

[YoursT]

kicad 9.04 physical stackup keeps changing when moving from mm to mil.

I have a certain stackup but the Kicad keeps changing 3 parameters (one of the dielectric layer’s height, and the epsilon-r on two other layers).

Every time I close and re-open the PCB file, the physical layers under “File–>Board setup–>physical stackup” keep changing.

Furthermore, how to make sure the GERBER files I create reflect the stackup I really meant?

I included the .pcb file as well.

Regards,

Yt

C to C Adapter.kicad_pcb (857.8 KB)

[paulvdh]

Probably related to the grid bug mentioned below.

9.0.4 Strange Part Move/Grid Snap Behavior

In all previous versions of PCB Editor, if you moved a part that was off-grid, it would move the part the selected grid spacing, keeping it off-grid, but then allowing you to snap it to the grid if you moved close enough to a grid point. In 9.0.4, it keeps the part off-grid and the only way I can see to put it back on grid is by editing the coordinates. Pressing CTRL allows you to place it anywhere, and SHIFT also does not snap to grid. Is there a setting somewhere I am missing?

[davidsrsb]

I am not sure why it has changed, but I am unable to repeat the problem on 9.0.4 .91 Testing