It is currently 7:57..
Yes, this can be a total pain. I got stung by it many times, during my last minute schedules. The reason for it, is that the automation apparently needs that amount of time to schedule/build a rack for you.
If you miss the 35 minute mark, you will need to wait an hour for the next opportunity. Schedule for 9pm
But if you send a message to support (and if they get it in time), they can manually schedule it for you.
They've also been able to cancel a session at the last minute and refund my tokens.
is that for all labs or just TS ones?