Hi Venkat,
Actually text data was maintaining thru respective text data source. Thru flat file hierarchy we may load hier str like node id ,node name , level, parent node, child node etc.
pls check this below points
1. Check your transformations how you mapped?
2. Check your description how much length you defined and how much length length description your loading from flat file?
3. Have viewed data data source level, if yes how its look like for missed description?
Thanks