Trying to use Invocable Methods in Community, and I’m getting a 503 Service Not Available error in the console. I believe the problem is that the POST url is missing the $Site.Prefix - in the console you can see the url it’s using - our community is located at ests.force.com/partners so I think it needs to have the /partners added in.
This may be a Salesforce error more than a Skuid error, but hoping to get some insight here first. I get the same error in Produciton on Spring '16 and Sandbox on Summer '16.