When we upload data to acoustic our dataset is based on contacts modified in a certain time period. This calculation is based on the contact.modified_date which is updated if any of the following are added, deleted or updated

• contact details
• address, email, website, phone details
• contact custom fields
• contributions (by virtue of them causing wmf_donor update).
• other things I haven' t confirmed such as adding tags or groups

Absent any other change to the contact a change to the contribution_recur table may not trigger a change to modified date field on the contact & hence may not cause a change to be pushed through.

We can fix this by tweaking 'triggers' on the contribution_recur table