If it has been over an hour and there has been no update, please check to be sure your latest episode file has successfully posted to your RSS feed. Please open the file to ensure it is a working file and the format is correct. 
Occasionally, we see that people attach a different file or document or change the extension name. Please run the show through a feed validator such as http://castfeedvalidator.com/ or https://podba.se/validate/# to see if there is an issue with your file. 
Also, it is possible your server is blocking our IP address.