FAQ and solutions to common issues in Altium
Why do I see a solid color in Altium when the 3D model is imported?
Why is the 3D model not rendering after import in Altium?
Why do i get text files after dragging the .lia file into the Altium window?
Why do slotted holes appear round on the PCB footprint I downloaded in Altium?
The footprint I'm using has board cutouts. Why? What layer are they on?
Why can't I change the mechanical layers in the Current Layer Mapping window?
What should I do if Layer 10, 20, or 21 is not present?
I got a "Design file not recognized" error. How can I fix this?"
Access violation error in Altium after import