CiviCRM 5.8.2 / Drupal
I have defined a Smart Group based upon a custom field (recipient) = 1, to be used as a smart mailing list.
(I use VBO to set this field to 1 for my selected recipients, and this works OK : checked in the custom field table).
But to have my Smart Group updated, I have to wait 5 minutes (possibly less), + there is no completion signal, so, my users will not accept it.
I have tested several processes to try to force the update, among which :
But they give erratic results : only some recipients are included in the Group, while others are not.
The tricky thing is that, if I click to change the Smart Group Criteria, the recipients list displayed is correct.
Clearing the cache appears to be a possible solution, but it is an admin reserved feature.
Any help is welcome.