ADDED: the author of the deleted post I'm responding to thought that he remembered that the Scheme 79 chip failed to actually run Lisp (Scheme). I replied:

Not that I know of, but only because of microcode errors. I was told "Sussman wasn't quite as smart as he thought he was" to tape it out without making really sure the microcode was correct.

In all fairness, at the time they had little in the way of available computer resources to e.g. simulate it, and it was all part of a very exciting time when MIT started doing Mead and Conway style VLSI, see https://en.wikipedia.org/wiki/Mead_%26_Conway_revolution and note the latter gave a famous course on it at MIT in 1978.