EBS Create Accounting" Concurrent request running normal since long time

Issue Create Accounting" Concurrent request running normal since long time in EBS 12.1.3 All the concurrent request of " Create accounting" running normal since long time and pending normal. And i found out all the request Wait Event status is "PL/SQL lock timer" The recent activity happened to apply patch "20043259" on this PRODUCTION env. Kindly provide the solution to resolve the issue. Solution We have followed ( Doc ID 1333290.1 ) and set the profile option to N, It was showing NULL. And all the create accounting program completed normal. Please let us know, whether the patch ( 20043259 ) changed this profile. If yes, In the patch readme file should contain this details