Perception Bobblehead ability does not work

I activated the second ability of Perception Bobblehead with 2 other bobbleheads on the field for an X value of 3. Upon resolution of the ability it did not give me any change to select cards and put them on the bottom of my library without me ever seeing them.

No source file or test is named in the report. Reproduce the Perception Bobblehead second ability with two other bobbleheads and inspect the card implementation and existing ability tests to trace its resolution. Done means the X cards are revealed for selection and the selected cards are put on the bottom of the library.

Written by the indexing model from the issue text.