Hi, as already discussed with Mr. Isuru Madushanka Weerarathna, I open this issue for a problem with the mod_attendance for which the local_reminders don't send out emails.

The following picture shows a lesson created with mod_attendance (of course with the option to create a calendarr event):

The following is the event created:

The table mdl_event shows rec. 31 for which I receive emails for every member of the group while for record 29 I don't. I also tried to change three fields found different  like modulename, instance and eventtype, even timeduration without result.

I get an email like this for the rec. id 31:

[DIVERTED 372850@1277.org] [Moodle-Reminder] AGGIUNTO: (TL001) prova cal email

(TL001) prova cal email [0 day to go]

Quando: lunedì, 8 novembre 2021 16:56 - Central European Time

Corso: VITA PRIVATA

Descrizione:

prova email

My locale_reminders settings are:

A cron log should be the following (every some minutes):

Execute scheduled task: Promemoria Locali (local_reminders\task\send_reminders)
... started 15:15:22. Current memory use 27.6MB.
[Local Reminder] Time window: martedì, 9 novembre 2021, 15:00 to martedì, 9 novembre 2021, 15:15
[Local Reminder] No upcoming events. Aborting...
[LOCAL REMINDERS] Overdue Activity Reminder Cron Started. Events between @(1636466454, 1636467322)
[LOCAL REMINDERS] No expired events found for this cron cycle! Skipped.
... used 6 dbqueries
... used 0.0095911026000977 seconds
Scheduled task complete: Promemoria Locali (local_reminders\task\send_reminders)