We are encountering an issue publishing certain Workflows with Custom activities in WF version 11.0.2206. We think the issue might be a possible bug as we can't replicate the issue in version 11.0.2102.
I uninstalled the Designer and attempted to install a lower version of the Designer (11.0.2102). I am encountering the message below. Is there a a way to install lower Designer version on a machine with a higher Workflow server version?