We are using Log Insight 8.6.2. (8.6.2-19092412) and the time period for alerts seem to have a bug.
No matter what time period for the trigger conditions I choose after intially the first and second run of the check differ in time according to the specified time period however after that the check runs every minute (so seems to switch to "real time") and the alerts/notifications it delivers are also for the last minute. The check however is "suspended" for the specified time period - so you'll be missing the time period minus 1 minute.
This seems to occur for new alerts as well as existing alerts I change. Non-changed existing alerts seem to be running fine.
Anyone else noticed this?