Using a slicer to change which measure is used. Trouble with Multi select

[jshinnenkamp]

I used this source to have a basic yes/no option that either shows a line on a visual or blanks it out. https://www.fourmoo.com/2017/11/21/power-bi-using-a-slicer-to-show-different-measures/

My issue is when a user uses Ctrl to select both Yes and No - I'd like it to default to yes. Instead I'm getting this error (the visual is a custom chiclet slicer, where I have Multiple selction set to off and Forced selection to on): 

[d_gosbell]

The code in the article from fourmoo.com looks like it should deal with multi-select fine as it will default to "Sales" if more than one item is selected in the slicer.

Can you post the expression you are using for the [Capacity+1] measure as the issue is probably in there somewhere?