Changing Font Color

Hi I'm working in Rise in the text blocks and cannot ALWAYS get the font color to change.  I am able to change the Paragraph Header but not any text within the paragraph. I highlight the text, the box comes up to edit the color but when I click on the icon to change the color the box disappears. 

Other times I am successful and can enter the number I want in HEX format but the color doesn't change.  I have tried simply hitting entering after the inputting the color number or clicking ok, but sometimes it works, sometimes it doesn't.  This whole issue is extremely frustrating!

I am using Chrome as my browser.    Please help!