Unichar Arrows Not Displaying on Dashboard

Hi, I have created a report that uses a card visual to dsiplay a percentage of cost change between 2 months which are previous and prior month. I have also created 2 card visuals for both an up and down arrow in each card. I am using the following measure for these cards:

CustomChangeArrowsUP = IF([CustomPercentageOfChange] > 0, UNICHAR(9650),"")

When the percentage of cost change between the 2 months the Unichar arrows work perfectly in the Power BI Desktop and Power BI Service and display correctly. When I pin this grouped visualization to a new Power BI Dashboard the Unichar Arrows do not display. I thought maybe formatting the Unichar arrows from black to red for up and green for down using the "Data Label" color formatting may have caused the issue so I tested with only black Unichar arrows and it produced the same result no Unichar arrows. Can someone please explain to me why the Unichar arrows do not display in a Dashboard? Please see picture below with no Unichar arrows

 

Thank you!