so i find a solution:
myLevel:setCameraBounds(0, 0, (25600 + 20480), 0)
after playing with that line the bounds extended to (25600 + 20480). In the LD ui my canvas width is 25600 but when i export and run it the camera bounds stops at half of the width 12800 even though when i open the level lua file the canvas width has a value of 25600, i had to increase the setCameraBounds value.
So i did a little test and created a new project in LD set the canvas width to 25600 and it runs without the previous issue.
so i am not sure what what happened to my previous project why it had the issue stated above.