We've been using scheduler for a couple of weeks without any problem, (up until Friday 3rd April), we were planning to add appointments on a monthly basis, but when we added slots for the rest of April, the students can't see them (it's set to visible from 'now' which shows as 3rd April in the settings). After playing around with it, I've established that slots created in April, May and early June are not visible to students, but slots from mid June, July and August are.
If I create all of them as repeated slots, then they all show in my scheduler, but for the students, it shows as nothing available until mid-June. Obviously, the settings are the same as they were created together. Selecting or unselecting 'ignore scheduling conflicts' makes no difference.
I have no idea where else to look.