ALARM "Collection 'BlockingList' failed : String or binarydata would be truncated" (4259567)

 Having an information alert pop up when the blocking alarm is triggered.

Sometimes SQL scripts DS runs report warnings about possible data truncation which should be handled internally; hiding them will not affect results.
In the patched procedure  we added  SET ANSI_WARNINGS off / on before and after running the SQL

Upgrade to the version where new QS_BlockingList.sql patch was included. If the version causing the error is 7.6.x then next version will be 8.0.1  and then 8.5.1 before upgrading to version 9.0. (after backing up agent directory and both databases).

 Alternatively, product can be uninstalled completely and the latest version can be installed.