---
title: Manufacturing Connect Edge 4.0.8
slug: manufacturing-connect-edge/manufacturing-connect-edge-408
docTags:
createdAt: 2026-03-06T16:25:38.164Z
---
Release Date: March 20, 2026
Review the current list of [Limitations](docId:0Jtfl0ZB6WKuqHgXIfjIF).
## Enhancements and Improvements
| Description |
| ---------------------------------------------------------------------------------------------------------------------------------------------- |
| **DeviceHub:**
* Introduced a new event when the system fails to start a device.
* Implemented lazy loading of devices in the background. |
## Resolved Issues
| Description |
| ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| **DeviceHub:**
* Resolved an issue where the `deviceName` value was incorrectly masking special characters to `_` (underscore) from the payloads published on `devicehub.plcstatus.>` and `system.events` topics. |
| **Applications:**
* Fixed issue where a running container could be stopped before the new image was fully downloaded when upgrading an app from Manufacturing Connect Edge. |
| **Integration**:
* Fixed issue where InfluxDB connector with empty remote topic for outbound subscriptions would publish to `measurement = deviceName.deviceID.tagName`. Now the connector will correctly publish to `measurement = deviceName.deviceID`. |
| **System:**
* Fixed issue where Docker bridge network interfaces displayed in **System** > **Network** > **Interfaces List** after upgrading from 3.16.11.
* Fixed issue where deploying or upgrading Manufacturing Connect Edge Marketplace applications from Manufacturing Connect failed when an **External** typed Docker network already existed.
* Fixed issue where events were not displayed in **System** > **Events** when backups failed to apply to one or more components.
* Fixed issue where permissions changed for sub-directories of `/ftp-data` after upgrading Manufacturing Connect Edge instances which prevented containers from launching.
* Fixed issue where upgrading from Manufacturing Connect Edge 3.16.11 to 4.0.x silently changed the active DNS resolver.
* Fixed issue where NATS proxy setting was disabled after upgrading from 3.16.x to 4.0.x. |
| **API:**
* Fixed the error response payload returned by the POST /access/accounts Access REST endpoint. |