Member (file name) already in use.

I'm experiencing a lock on a member in a file. The message I receive is,
"Member (file name) already in use." [CPF3130]The lock is apparently created
by a program in my interactive job that is ending without setting on LR.
(This is a testing environment where the job is being run interactively
rather than it's normal batch mode -- so this problem is not occuring in
production.)
I cannot find any way to release the lock. I've tried DLCOBJ for all levels
(*SHRRD/*EXCL/etc.) for both the physical and the logical file involved.
I've tried RCLRSC, RCLDDMCNV (the files involved are not DDM files, but we
have them -- or rather, we have OptiConnect...) and RCLACTGRP *ELIGIBLE.
Also, CLOF (file name) -- which told me that there was no file open with the
identifier. Nothing seems to work -- except logging off and logging back on
again.
Anybody got any advice? Thx!
Jeff