Post upgrading from 15.9.3 to 16.0.3 it has been observed that Blueprint section labels with Upper Case changed to Mixed case and this is even for custom blueprints too.
Release : 16.0.2, 16.0.3
This was an intended change with version 16.0.2, the label information which was earlier stored in table ODF_SECTIONS are now moved to CMN_CAPTIONS_NLS.