I *think* the answer is:
Each Libero number on the roster must be unique, so the roster as given must be corrected; e.g.:
Smith...2/L1
Jones...3/
If that is done before 10 minutes before the match, no penalty; otherwise point/loss of rally.
If Jones wants to be Libero for the second set, then that is a roster change -- and a penalty (unless one has been assessed previously).
Comments?
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