I've tried a few times to launch a sale event to offer a few % off my items. Gone into marketing, discounts, create an event etc, exactly as the instructions said and ticked all 500+ of my items. Trouble is, once the sale goes live, it only seems to include 15 to 30 items?!!! I know that anything that has only been listed within the last 14 days, won't be included, but what about the other 400+ items?? I've definitely selected all my inventory, as it said 520 items selected. Any ideas please????