Aliasmask's lib:players is on the token layer. It's right in the middle of the pink field under the words that say "For onTokenMove, See BASE map."
In any case, I'm completely unable to duplicate your problem. The lock movement in iniative is never forced on for me. That's what you're saying is happening, correct? You open the framework, set everything up, have players connect, give them ownership of their tokens, and when you start a new encounter the lock movement option in the initiative panel is forced on? I just can't make a scenario where that happens.
Thanks for checking Dorn. The scenario you describe is correct. I cannot find the lib:players anywhere, strange. I'm going to try out LM's new build when he releases it and see what happens. Thanks again!