Title: DCD: Not respecting "Validity of missing data" setting Class: fix Compatible: compat Component: checks Date: 1706018703 Edition: cre Level: 1 Version: 2.1.0p39 This fixes disappearing hosts in case of temporarily missing data around the time when a cleanup background job is run (around midnight). In case a piggybacked host temporarily did not receive any data while the background (cron) job `cmk --cleanup-piggyback` was executed, a subsequent run of the DCD would not respect the "Validity of missing data" setting, wrongly removing the affected host from the monitoring configuration.