Plugin Host 'New' doesn't work

Build the latest plugin host from develop, add 4 plugins. Select new from the file menu. Not all the plugins disappear, and then maybe it will crash here:

void GraphEditorPanel::updateComponents()
    for (auto* child : getChildren())
        if (auto* fc = dynamic_cast<FilterComponent*> (child))

Thanks for reporting. This is now fixed on develop with commit 39ce151.