Hi @Christine Withers ,
Welcome to our forum.
Firstly, please understand that the default reminder option is mainly used to set your own reminders on the meeting/calendar, not to set reminders for attendees.
I have tested a lot about the meeting reminder, here are my test results(condition: organizer A set the reminder to 30 minutes and the attendee B set the reminder to 1 hour )
- When A created a meeting, the reminder would show his default setting "30 minutes", If A didn't change the reminder manually, the reminder in A is keep 30 minutes and in B is 1 hours, which is the same as the respective default settings.
- If A changed the reminder to 2 hours manually when he create the meeting, the reminder in A and B are all 2 hours, which is same with your manual setting.
According to these tests, it seems like if you change the reminder to other value manually when you create the meeting, system would recognize that you want to set a reminder for this meeting and show it on attendee's meeting, and if you don't change reminder manually or choose the same value with your default setting, it may not be recognized and would keep the setting of respective default settings, I think it may be by design.
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