The Issue

Ignition version 8.1.46 introduced a fix for the ScriptManager where script initializations would potentially overlap, causing inconsistent object IDs and other ill effects. This was an attempt to address a longstanding, but subtle, scripting issue that could only be caused by unique edge cases of user code. 

After release we found that the fix could cause a deadlock if project library scripts were manually imported using the import statement after updating to Ignition version 8.1.46. We will be rolling back this issue by deploying an emergency release for Ignition version 8.1.47. 

Solution

If you have recently upgraded to Ignition version 8.1.46 and are experiencing a deadlock on your Gateway, Designer, or Vision Client, revert back to 8.1.45 as a temporary workaround.  Version 8.1.47 is scheduled for release within the next few days and is recommended for upgrade in order to receive all other listed features and bug fixes originally targeting 8.1.46.