Just installed BookThatApp but I can't seem to get the calendar to work. Basically I have this single event that's already in my Shopify account as a product. I add it to the calendar via BookThatApp > Configuration > Products. I set a date, time and capacity. There's a little "Preview Calendar" window that doesn't reflect any of my changes. After saving the changes, they aren't reflected in the live calendar either.
When I tick the box "Recurring Event", the event does show up on the Preview Calendar all of a sudden. However, the starting date and time are ignored and instead the preview uses the current date and time as a starting point. The event runs from 18:00 to 04:00, but the calendar preview says it starts at 03:43.
Maybe related: the timezone is set to UTC+0 (United Kingdom). And yes, I did read the Getting Started manual.
Any help would be appreciated.