I’m an FME Objects user who was told to examine my data in the FME Viewer. Why

From fmepedia

Q) I’m an FME Objects user who was told to examine my data in the FME Viewer. Why?

A) Because the FME Universal Viewer is an application written using FME Objects it is a useful tool for checking out problems with your FME Objects code.

If data looks correct in Viewer, but not in your application, then it is likely to be your application that is incorrect instead of a fault within FME Objects.

If the data looks wrong in both then it is more likely to be an FME related problem.