I don't have Hulu anymore, to check.
Make sure you are still logged into Hulu via Streamfab.
THEN:
First, reboot computer.
Then try again.
If still issues, clear out/delete the streamfab cache. You will have to log in again.
Still issues refer to clean installation of SF.
Again, you will have to log in.
Still not working, with streamfab closed. Delete the streamfab.log, then start SF and go to Hulu directly try 1 trouble issue then attach streamfab.log to a post.
State the 1 item you are trying.
Attach any possible screenshots that you think may help for people to see the issue.
Also, did Hulu or does it work with 6245 or 6244 for you?
Additionally, as of this post, there are no other reports of this for Hulu.