Field alias names with spaces do not display the information after the space in the drop-down to choose the field from the layer on which the related (on the fly) is based on.
Last Published: August 3, 2015ArcGIS for Desktop
Bug ID Number
January 28, 2015
November 24, 2020
ArcGIS for Desktop
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.