If I right click on a camera and click "Trigger Now", wait for the trigger to end, then click "Trigger now" again, an alert is not generated after about 5 triggers in a row. Can anyone else replicate this behavior?
As a test, I set "End trigger unless re-triggered within" to 10 seconds, triggered the camera, wait 10 seconds for the trigger to end, then trigger again. The 5th or 6th alert will not appear in the timeline/sidebar, but alerts start creating again if I keep clicking "Trigger now" at a regular cadence of about once every 12 to 15 seconds, then an alert gets missed, then about five more alerts in a row (see screenshot of the gaps in the timeline).

Triggers do cause the main stream to be recorded even when alerts aren't generated. I'm using the default trigger and alert settings, and can replicate this on all my cameras.

I am using Home Assistant to trigger a camera when a door is opened, but this rate limiting causes the timeline alerts to be misleadingly dormant if the door is used repeatedly. The "retrigger" period is set to 60s. Several people will go outside, creating an alert about 2 or 3 minutes long containing several door openings. Then 2 minutes later, somebody will come back inside but no alert is generated. This makes the Blue Iris timeline unreliable as a tool to visualize door activity. The timeline/alert list should not be empty when the camera was triggered and configured to create alerts. I have found no reference to rate limiting in the Blue Iris manual. I'm using version 5.5.5.9 but I also noticed the issue on previous versions of 5.
As a test, I set "End trigger unless re-triggered within" to 10 seconds, triggered the camera, wait 10 seconds for the trigger to end, then trigger again. The 5th or 6th alert will not appear in the timeline/sidebar, but alerts start creating again if I keep clicking "Trigger now" at a regular cadence of about once every 12 to 15 seconds, then an alert gets missed, then about five more alerts in a row (see screenshot of the gaps in the timeline).

Triggers do cause the main stream to be recorded even when alerts aren't generated. I'm using the default trigger and alert settings, and can replicate this on all my cameras.


I am using Home Assistant to trigger a camera when a door is opened, but this rate limiting causes the timeline alerts to be misleadingly dormant if the door is used repeatedly. The "retrigger" period is set to 60s. Several people will go outside, creating an alert about 2 or 3 minutes long containing several door openings. Then 2 minutes later, somebody will come back inside but no alert is generated. This makes the Blue Iris timeline unreliable as a tool to visualize door activity. The timeline/alert list should not be empty when the camera was triggered and configured to create alerts. I have found no reference to rate limiting in the Blue Iris manual. I'm using version 5.5.5.9 but I also noticed the issue on previous versions of 5.