After upgrading to AE 12.3.0, the following error messages are noticed in WP logs which generates flush ring trace:
20200513/071206.957 - U00015006 System forced memory trace dump.
20200513/071206.990 - U00015006 System forced memory trace dump.
20200513/071206.990 - U00003631 Dump caused by:
20200513/071206.990 - U00005118 Program error: Database access via key 'EH_Client' with value 0 in module 'UCGENX_R'.
20200513/071206.990 - U00011801 Error in Server routine 'UCGENX_R', Server: 'GMUC4P#WP032' AE system: 'GMUC4P'.
Release : 12.3.0
Component : AUTOMIC AUTOMATION ENGINE
Issue is identified as a BUG and Issue is already fixed in 12.3.1.
Hence you may need to upgrade to 12.3.1 AWA version to resolve the issue.