'Next WO Only' related Question

Dear eAM Gurus:

We have a case of multiple activities in our PM. During our testing we found out that the 'Next WO Only' Check box's functionality is such that it works at an individual asset activity level instead of the whole PM definition. For e.g. if my PM definition has PM1, PM2 and PM3 and PM4, let’s say next due WO is of the PM2 and then I change the setup of 'Next WO Only' from 'No' to 'Yes'. What we noticed is that the PM flow will traverse the complete cycle up to PM4 and then stops generating Work Orders instead