Cannot change font in description while submitting ticket

Cannot change font in description while submitting ticket

Hi!
I upgrade from 10514 to 11140 the upgrade went fine. 
 
I do have some issues regarding default request incident template, I cannot change font, font size, font color, etc in the description when submitting a ticket as technician. Nothing happens, it just goes back to default font and size Roboto 10px. 
 
I tried to use “Clear Customization” by editing the default incident template. (According to attached picture). I have tried in different web browsers and in private mode. 

/Marcus

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