1. that because of you are not using our layout to build tour content.
When i deactivated some 3rd part plugins, your tour display nothing.
2. Some of customer has also notified this issue. We are working on to improve it.
3. Please follow my image to do it.
'orderby' => 'name', 'order' => 'ASC',
4. Following our design, the filter function only work on search result page.
5. In order to change that, you need change a lot of code so it quite complicate to guide.
We will consider to update it.