When your installation defines the APPC log stream, make sure that AUTODELETE=NO and RETPD=0 are specified (or use the AUTODELETE and RETPD parameter defaults which are NO and 0, respectively).

Also, if your installation uses the LIKE keyword when defining the APPC log stream, make sure that the log stream specified on the LIKE keyword is not defined with AUTODELETE=YES and RETPD other than zero.