Why Are UniFi Smart Detections Missing After Update?
- Update reset smart-detection settings
- AI models re-downloading after update
- Feature toggled off by the update
Problem Description
After a UniFi Protect firmware update, smart detections (Person, Vehicle, Animal) stop working — motion events are recorded but no smart classification tags appear. The update may have reset detection settings, the AI model may need time to reload, camera firmware may need updating for compatibility, or the update may have introduced a regression.
Why This Happens in Real Homes
Smart detections missing after a UniFi Protect update usually means the update reset or disrupted the smart-detection configuration — the feature toggled off, zones cleared, or the AI models needing to re-download. It's a post-update settings/state issue rather than a hardware failure.
Re-check the smart-detection settings on each camera and re-enable person/vehicle detection with the correct zones, and give the AI models time to finish updating after the firmware change. Restart the controller and cameras, and install the latest firmware since a follow-up build often fixes update regressions. If detections stay broken on properly configured, updated cameras, contact UI support.
Symptoms
- Smart detections stopped after an update
- No smart events since updating
- Person/vehicle detection broke post-update
- Missing smart detections
- Worked before the update
- Smart detect disabled after firmware
- AI detection lost
- Detections gone after update
Recognize these? Here's what usually causes it.
Common Causes
- Update reset smart-detection settings
- AI models re-downloading after update
- Feature toggled off by the update
- Firmware regression
- Zones/config reset
- Controller needs a restart
- Follow-up firmware needed
- Camera needs re-provisioning
Most fixes happen in the first 3 steps.
Do not assume defaults persist after major version changes.
Tools & Requirements
Step-by-Step Solution
Re-enable smart detections after the firmware update
Some Protect firmware updates reset smart detection settings to their defaults. In Protect: Devices > select each camera > Settings > Smart Detections. Verify Person, Vehicle, Animal, and Package detection toggles are enabled. If they were reset to off during the update: re-enable them. After re-enabling: walk in front of the camera to test Person detection. Drive a car past for Vehicle detection. Allow 5-10 minutes for the AI model to fully initialize after re-enabling.
Wait for the AI model to reload after the update
After a Protect update: the smart detection AI model is reloaded and reinitialized on the NVR. This process can take 10-30 minutes depending on the NVR model and number of cameras. During this time: motion events are recorded but smart classifications (Person, Vehicle) are not applied. Check the Protect system status: if the AI model is loading, a status message may appear. Wait 30 minutes after the update completes before testing smart detections.
Restart the Protect application
If smart detections do not return after 30 minutes: the AI model may have failed to load. Restart Protect: in UniFi OS > Applications > Protect > Restart. This forces a fresh AI model load. After restart (2-3 minutes): test smart detections by walking past a camera. Check Events for Person tags. If the model still does not load: restart the entire UniFi OS (Settings > System > Restart) for a full system reinitialize.
Verify camera compatibility with the new Protect version
Protect updates occasionally drop smart detection support for older camera models or require camera firmware updates to maintain compatibility. Check: does your camera model still appear in the smart detection settings? If the smart detection toggles are missing or grayed out: the new Protect version may require a camera firmware update. In Protect: Devices > camera > check for firmware updates. Apply any pending camera firmware. Smart detections may only work after both the NVR and camera firmware are updated to compatible versions.
Check Ubiquiti community for known issues with the update
Major Protect updates sometimes introduce smart detection regressions. Search the Ubiquiti Community forums (community.ui.com) for your Protect version number + 'smart detection.' Other users may have reported the same issue, and Ubiquiti may have acknowledged a bug with a fix timeline. If a known regression: you may need to wait for a hotfix. In some cases: rolling back to the previous Protect version is possible (UniFi OS > Applications > Protect > check for rollback option), but this is not always available.
Quick Solutions
Still having issues? This is usually the deeper cause below.
If the sensor still misses events after repositioning, check whether a scheduled 'home' or 'away' mode is overriding the sensitivity setting silently.
Post-update QA should include smart detection checks on representative cameras.
This issue almost always looks more complex than it is — the majority of cases trace back to a single setting, a stale credential, or a default that shipped wrong.
- Update reset smart-detection settings
- AI models re-downloading after update
- Feature toggled off by the update
- Firmware regression
- Zones/config reset
Before you go — try one of these (they fix most cases).
Official Manufacturer Manual
UniFi Protect provides official product documentation through their online manual rather than downloadable PDF. Access setup guides, troubleshooting steps, and product specifications for your UniFi Smart Detection Regression.
Source: help.ui.com
Need More Help? UniFi Protect Support
Note: The contact information below connects you directly to UniFi Protect's official customer support team, not Trunetto. They can help with warranty claims, device replacements, and advanced technical issues.