Created Date Table in PowerBi, Joined it, but Data is missing

[QQQ]

GitHub Repository with power bi file

Created Date Table in PowerBi per these instructions

Joined the tables

When I create simple table with Month and Matches, Month is blank

However if I display Month by itself, then the values show. HELP!

[MattAllington]

 Which date column are you using your visual? Once you add a calendar table, you should never use the date column from your data table. 

[MattAllington · Accepted solution]

The column you have joined on (Standard Date) is a text column.  You need to convert it to a Date column