problem when adding audio track while recording

[discjockeyr]

Hello,

Need a help from any advance user. When i am starting to play live with ableton and recording my set, lets say that i have 3-4 audio tracks in the session view and after i have add 1 or 2 or more tracks. all the tracks that i add later cannot be played when i finished my set. all of them are highlided with pink colour and cannot be played. also the waveform is not appears untill you move the cursor to the position that those tracks are. i don't know if i explain clearly this problem but i hope. Actually i thing that is something wrong and i don't believe that you cannot add tracks while playing live.
Any idea please?