ArcGIS Pro 1.3.1: Masking does not work

Question

I select Layer 1 (an outline, which I want to use to mask a few sublayers), click the Appearance tab within the Feature Layer group > Masking > check box next to Layers 2, 3 and 4 that are located below Layer 1 in the Drawing Order view of the Contents pane.

The map then redraws itself, but does not mask out the sublayers.

DanPatterson_Retired · Answer

I would definitely report it as a potential bug... tech support only fixes what is sent their way and geoNet isn't their first stop to find issues... so pack it off and open a case would be my suggestion

DanielMatranga · Answer

Can't guarantee that it worked in 1.3, but I do remember it working in 1.2.

DanPatterson_Retired · Answer

did it work in 1.3?  the 1.3.1 update is fresh, so the bug fixes may have introduced a bug