Advocate III can duplicate this error message with two stacked bar charts.
Each chart has a value for the axis, and the count of another value for the value field. With both charts, I am able to click and ctrl-click values to cross filter things.
In one of the charts, I add the same value used in the axis as the legend, then turn the legend off. Effectively, I have the same chart as before, but all the bars are now different colors. By clicking and ctrl-clicking to cross filter by two things (same as before), I can get at least one of the charts to fail to display with the error message shown in the original post. If there are other visuals on the page, all of them also fail.
Currently, there are two work arounds for this. The first is that I duplicate the column used for the axis, and use this duplicated column in the legend. The second is that I don't use a legend at all, and set colors individually.
Feedback Type:
Frown (Error)
Timestamp:
2018-10-18T12:24:44.9832896Z
Local Time:
2018-10-18T07:24:44.9832896-05:00
Session ID:
f24eafc7-41e9-4dce-85fd-db1c057e5b79
Release:
September 2018
Product Version:
2.62.5222.761 (18.09) (x64)
Error Message:
The duplicate expressions in the In filter do not have identical values. They cannot be deduped.