If you’ve been having problems with updating your theme options starting with Producer 2.1.9 up to 2.1.9.5 you should update your copy of Producer to 2.1.9.6. It was previously reported that the problem was fixed in 2.1.9.5, however that report was incorrect. The problem was misdiagnosed and assumed fixed based on the faulty diagnosis.
Producer 2.1.9.6 can be download from the downloads page. It is not yet available on the wordpress.org website.

Hi there, I’ve updated to 2.1.9.6 but am unable to update the’site logo’ field. When I try and undate it takes me to my blog and returns the error ‘Page Not FoundThe page you were trying to reach could not be found.’
I’ve fiddled with updating other settings and things like category order, layout, static/widgets all update fine.
@technomonkeyx, you and the 3rd person to report this problem and the connection between all 3 so far is you are all being hosted by the same company. Your service provider may have recently done some kind of mod security upgrade. The upgrade may have been between the last time you updated the logo and now so that you’re only being affected now because you are trying to update the logo, background image or some other field that is trying to save a URL. Please contact your hosting service provider and tell them that you need the rule 340163 whitelisted for domain.com as its hitting a mod_sec rule. That should get the problem solved. If it does not please report back to me.
Thanks so much! I contacted Hostgator and they immediately whitelisted the rule, everything is fully functional. Thanks for all your work, you’ve done an excellent job.