Parameterized Data Pages in 8.6 need to be modified to work offline.
In Pega 8.6, Parameterized Data Pages were added as a supported feature for offline enabled applications, as a result, applications using parameterized data pages in previous versions need to revisit their parameterized data page configurations.
In previous versions for Pega, offline applications did not support parameterized data pages out of the box, and Pega applications that implemented them with custom JavaScript may need to revisit their data page configurations.