runubexml: Could not initialize an ENV handle for User in Environment

Hello,

We have used runubexml in order to run UBE's on scheduled time.

Recently, the error below comes up sporadically and then UBE's are not executed.

>runubexml: Could not initialize an ENV handle for User  in Environment

Document 628799.1 describes that it is the cause of the error not to cd to (JDE installed directory)\system\bin32.

https://support.oracle.com/epmos/faces/DocumentDisplay?id=628799.1&displayIndex=1#aref_section22

However, the cd is written in a dos batch script with error handling logic on our JDE, hence I cannot think that runubexml is called in wrong directory.

Does anybody experience the same problem?