When queuing up multiple combat techniques, you should use an approach called interleaving. For example if you want to perform three strikes with each hand, rather than typing ‘ls’, ‘ls’, ‘ls’, ‘rs’, ‘rs’, ‘rs’, you should instead type ‘ls’, ‘rs’, ‘ls’, ‘rs’, ‘ls’, ‘rs’, so that the techniques alternate between your left and right hand.
The reason for this is that commands come off the queue in the order that they were added. If you enter all of the left strikes first, then no right strikes will come off the queue until all of the left ones have first been used. While this might initially seem counterintuitive, it does ensure that all your queued commands will be performed.
If you type ‘config interleaving’, each location will instead pull techniques off the queue as soon as possible. However you should be aware that this may result in situations where high-AP techs never came off the queue, because the cheaper techs are performed the moment you have sufficient AP.