There is something wrong with the diode in my schematic or PCB. Please open the PCB at the below link. Press Alt + I or click Design > Import changes. Apply the "change". Now press Alt + I or click Design > Import changes again. Apply the "change". Exactly what has changed? You can spend all day doing this if you like; there's something wrong. Can anyone tell me how to fix it? Thanks very much.
You need to upate parts at schematic too, since v6.4.20.8, footprint update will not influence the placed part at schematic, you need to update the parts at schematic too.
that can avoid the footprint changes and make the design incorrect after import changes.
you can update parts at schematic when right-click the part - Update from Library, if you have to much parts, you can try Find Similar Object to select all parts, and then right-click to update
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It can be fixed by deleting the component from the schematic and then adding it again from the library.