THIS IS A VERY MAJOR PROBLEM FOR ME.

Starting a few days ago, my Scheduled daily events no longer appear on Tomorrow or Today. They still exist under Scheduled.

I tried editing my existing events under Scheduled, setting their start dates to what was then today. This caused them to immediately show up on Tomorrow and Today. But 24 hours later they had disappeared from Tomorrow and the day after that they no longer appeared on Today.

So this problem seems sticky.