Read Thread Is No Longer Alive

Question

I have a blueprism process which attaches to a web page and performs various actions. The process has been running smoothly for six months, but I am now getting an initial error of "ERROR: Internal : AMI error occurred in WaitStart Stage 'Wait For Detail' on page 'Update Claim' - External AppMan reader thread exited before response from query"

After this Blueprism is unable to perform any online action. I get a message saying that the "Read Thread Is No Longer Alive"

It appears to be caused by the Accessibility and UI identification methods in the App Modeller.

Answer 1

Issue was caused by Microsoft pushing out an update to Sharepoint. Blueprism are aware of the issue and have put a post up notifying users https://help.blueprism.com/Automation-Design/Application-Integration/Active-Accessibility-Spy-Mode/1280268672/Why-does-Active-Accessibility-crash-Blue-Prism-when-spying-SharePoint.htm

I re-engineered logic to use HTML elements. I found that the focus action performed the same as a global mouse click center.