Some times STAAD brakes the loads specification like releases, Truss Property parameters brakes in several part and even after merging this problem not solved , How to get rid of the problem ?
It is a time-consuming process as the number of operations increases. and what about UDL it is line load which is also brakes in several parts !!
You may check this Wiki for the explanation and solution: Assigning Properties, Specification, and Design Parameters using Beam Groups - RAM | STAAD | ADINA Wiki - RAM | STAAD | ADINA - Bentley Communities