Power failure in the appropriate room with animus heart controls, but not the rest of the house. Not all automations were restarted when the power came back on, how sure that everyone was restarted? and this applied to both z-wave and 433mhz.
If you had an scheduled event that was suppose to trigger during the downtime then that will not be triggered after it’s up and running again - that window was missed. Other triggers that will start on motion etc. will trigger as usual.
Z-wave devices will show status “N/A” when Heart is rebooted and will remain N/A until the device reports it state.