"Cannot read property 'map' of undefined" in meta field

[yoching]

We are using sendgrid-sync-contacts extension.
Many of the documents in contacts have meta field with this data..

Do you know any information about these?

{state: "ERROR", error: "Cannot read property 'map' of undefined"}

[alexlunnon]

Seeing this issue as well, appears to be intermittently occuring.

[alexlunnon]

For me it looks like this error was caused by hitting Sendgrid v3 API Rate Limit of 600 requests per minute per account.

[yoching]

For my project, it seems the request frequency is not that high.