Can't start new animation because previous one didn't stop

[dj999012]

If I sit on blue ball and use animations and leave to try another on it won't work or won't give blue ball at next place. Sometimes I can't stop or end previous animation

[Rolig Loon]

Animations are handled in your own viewer, so it's possible for them to trigger improperly if your viewer has to deal with a sluggish or flaky Internet connection.  If you have been using a wireless connection, I suggest getting rid of it and moving to a LAN cable connection from your computer to your router/modem.  See http://community.secondlife.com/t5/English-Knowledge-Base/Wifi-and-satellite-connections/ta-p/1296823

If it has been a while since you rebooted you router and modem, I suggest doing that too.  Unplug both from the power for a few minutes, then plug them back in and restart your computer.

Those steps should make a lot of difference, possibly solving the problem altogether.  If not, start working through Natales's hints on how to improve your connection >>> http://blog.nalates.net/2011/10/26/troubleshoot-your-sl-connection/

You may also want to try the Firestorm viewer, which has more options for managing permissions than the standard LL viewer does.  See  Revoke Permissions, under the heading Protection Tab at http://wiki.phoenixviewer.com/preferences_firestorm_tab