I have configured the flow as follows: the system correctly associates the attachments with each ID. However, when sending the reminder emails, it combines all the attachments together.
For example, ID 1 has 3 attachments and ID 2 has 1 attachment. But when sending the reminder emails, the system is grouping all the attachments together. (ID 1- comming with 3 attchement, seconed mail ID 2 is coming with 4 attchement)