P_FLEXDATA show \n\n\n\n in XML output

We are working on upgrade project from 11i to R12.2.5 and we have custom report copy for 11i seeded  , its working fie in 11i , but while we run in R12.2.5 its show bellow error .

Seeded report  " WIPDJRTG.rdf"   in R12.2.5 its working fine for Flexdata ,

- <LIST_G_HEADER>

- <G_HEADER>

  <SORT_BY_CODE>Schedule Group, Build Sequence</SORT_BY_CODE>

  <ORGANIZATION_NAME>FGD NEILLSVILLE EAST</ORGANIZATION_NAME>

  </G_HEADER>

  </LIST_G_HEADER>

- <LIST_G_JOB>

- <G_JOB>

  <JOB>MO-5115604</JOB>

  <DESCRIPTION>Job Mass Loaded on 15-SEP-2016 08:44:26 (server timezone)</DESCRIPTION>

  <START_QUANTITY>69</START_QUANTITY>

  <FLEXDATA>871272N-00\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n</FLEXDATA>