Sounds to me like you have not changed the number of modules from 1 to 4. Please confirm?

The library will send out enough data to fill up the number of modules. If you give a number of modules less than it has, then it only fills up part way and the next lot of data pushed the first lot into the next modules, etc, with a delay of 1 animation frame between each module. So if you are scrolling in, the data will appear as one column in module 1, then 2 cols in mod 1 and 1 col in mod 2, then 3 col in mod 1, 2 col in mod 2 and 1 col in mod 3, etc, rippling down the line.