A web map with labels enabled from a map service sublayer does not have the labels honored in Web AppBuilder for ArcGIS (Developer Edition).
Last Published: August 17, 2015ArcGIS for Server
Bug ID Number
August 3, 2015
September 22, 2022
ArcGIS for Server
This issue was not reproducible when tested by the development team. Issues may be given this status when they cannot be reproduced or are no longer relevant in a development version of the software, but a specific fix was not installed to address the issue. The issue's Additional Information section may contain further explanation.
This has been addressed in the Web AppBuilder Developer Edition 1.2 released on August 11.