I've setup an new project using the default empty database setup about two weeks back. Immediately I ran into two issues which unfortunately couldn't be resolved by the support of Dynamicweb.
There are two actual problems playing from the moment i've started developing.
1) On DW core 8.2.1.0 i'm not able to change anything under management center > stylesheets > default > page.
I'm immediately presented with an error there. However this isn't high priority to me since I CAN do this in any core higher then core 8.2.1.0
2) This is the biggest and most annoying problem i'm running into. In ANY core higher then version 8.2.1.0 i'm presented an error whenever I try to edit an paragraph. In core 8.2.1.0 I can work like i'm used to in DW. However as soon as I attach an core higher then 8.2.1.0 i'm getting the error provided in the attachement. Also using the default condition templates and forcing all upgrades didn't help. Also the latest core 8.2.1.9 provides me this error. Anyone any suggestions?