Issue: Failure to create new areas in area manager

What is your exact approach? I just tried to create a new area named "Test" with no other information filled out and it was successful. What other settings are you using? Also what are you naming it?

Problem solved I think. I was trying to create a new area that had the same name as a pre-existing wiki in another part of the structure. If I add a prefix or suffix to change the name it saves okay.

In that case, the bug here is that the area manager doesn't show the error message when there is an error with the submission like a duplicate name.

In general, the admin area was not displaying error messages that originated from data managers, and submissions were not preserved in the form reload (except areas and prefixes which were preserved). Further, for areas and prefixes, the overlays would become broken after a failed submission, due to a breaking change during RC that provided instance support for overlays - a change that was not actually applied to admin overlays at that time.

Both issues are fixed in the next release for all the admin panels I know of that accept admin input and pass through a DM. Some admin panels that pass through a DM already had error checking outside the DM, such as moderator and user mask panels, thus there should be no need to add DM error handling for these panels.