After the clone of Oracle Applications (12.1.3), launching forms was failing with the below error message,
APP-FND-01630: cannot open $FND_SECURE/*.dbc file for reading
Cause: Configuration file reader encountered an error when attempting to open file $FND_SECURE/*.dbc file for reading
Action: Verify that the filename is correct and the environment variables controlling the filenames are correct.
Noticed that DBC file in $FND_SECURE is having 600 permission
Tried giving 777 to dbc file and restarted services, which didn’t help.
Ran autoconfig on all the application nodes and started the services, which then resolved the issue.