Unexpected surprises in archiving - calculated archives

As a person who has been responsible for maintaining and developing the D2000 Archive process for several years and correcting any possible errors, theoretically, I should not be surprised by the operation of the archive. The reality is, however, different from the general theory, and I would like to share one such surprise today.

This is a companion discussion topic for the original entry at https://d2000.ipesoft.com/blog/unexpected-surprises-in-archiving/