Illegal Replacement

[kayla vb]

I don't understand the illegal alignment call.

12.2.1.2 Replacements involving the libero are not counted as substitutions and are unlimited. There must be at least one completed rally between two libero replacements, unless the libero is replacing the player in position No. 1 and is the next correct server, the libero is ill or injured (See Rule 12.3.1), or there is a forced rotation caused by a penalty. The libero can only be replaced by the player whom she replaced. An incorrect libero replacement results in a delay sanction if the officials identify and correct the situation before the next service contact. If identified after service contact, a position fault results.

That explicitly states that you CAN have two separate libero replacements if and only if the libero is legally going back to serve. Moreover...

12.2.2.1 Replacements can only take place after a completed rally or at the start of each set after the second referee has verified the starting lineup. The replacement must occur while the ball is out of play and before the authorization for service. A replacement made after the authorization for service but before service contact is not rejected, but a verbal warning is issued. Subsequent late replacements in the match result in a delay sanction

So if the concern was that the replacement took place after the beckon, it still is only worth a warning.

(For clarification, that's from the NCAAW rulebook, I'm not very familiar with NFHS)