MC34063ADR overheats and burns
1B-13F, 1N400x are inappropriate for SMPS designs- too long recovery time even for a pig of a chip like 34063- and not even specified so the specs can be met yet the diodes can be very different.

Use a Schottky diode like the datasheet shows. An ultra fast diode such as UF4004 can also be used.

Inductor saturation is another thing to look for if that part changed.