Unable to Import .LAS in SS4

I am unable to import .LAS file as point clouds in Microstation SS4. Each time it says "Convert Failed". I used to be able to use Data acquisition in previous versions but can't find that tool anymore. Since migrating to ss4, it been confusing on how surface data import works.

I tried using inroads SS4 >  terrain model > create from file > then selecting the .las file, but nothing happens.

Not sure if am missing anything in the workflow.