I am using the JSSR / JYTHON replacement for expire ( JSR223 Jython Replacement for Expire Binding ). This is based on helper libraries ( https://openhab-scripters.github.io/openhab-helper-libraries/index.html )
While I am using a rule to only display changes to also display the last time of the change it should be possible to implement it in the other way around to check for missing changes.