Forum Discussion
Custom font in Power BI
There are a few things you can check to troubleshoot the issue of your custom font not working in Power BI Desktop:
Confirm that the font name you are using in your JSON theme file matches the actual font name. Sometimes font names can be slightly different than what is displayed in the font selection menu.
Make sure the font file is installed on the computer running Power BI Desktop. Although you mentioned that you have the font available in Word/Excel and the Windows Fonts folder, it's possible that the font file may be corrupted or not installed correctly. You could try reinstalling the font or downloading a fresh copy of the font file.
Check if the font is being overridden by a font setting in your report or on your visuals. Go to the Visualizations pane and select a visual. Then, in the Formatting pane, expand the Font section and make sure the font setting is set to "Default".
Try clearing the Power BI Desktop cache. Sometimes cached files can cause issues with custom fonts. To clear the cache, close Power BI Desktop, navigate to the %LocalAppData%\Microsoft\Power BI Desktop\HostCache folder, and delete all files and folders within it. Then, reopen Power BI Desktop and see if the custom font works.
Hopefully one of these solutions helps resolve the issue with your custom font not working in Power BI Desktop.