Executing multiple SQL Server Agent jobs that use proxy accounts at the same time fails due to BCryptDecrypt issues. Additionally, one of the following errors occurs: 1. Unable to start execution of step 1 (reason: Error authenticating proxy <ProxyName>, system error: ConnGetProxyPassword). The step failed. 2. BCryptDecrypt failed (-1073741762) Unable to start execution of step 1 (reason: Error authenticating proxy <ProxyName>, system error: The user name or password is incorrect.). The step failed. Note You may see this issue when the number of logical processors is high (larger than 32), and the concurrency jobs are also very high.