A. The XSIAM Collector is dropping events due to network saturation for this specific cloud provider's logs. Increase network bandwidth to the Collector.

B. The default field size limit or string handling in XSIAM's internal data model for the 'resource_id' field is truncating long strings, or the parsing regex is not greedy enough. Review the XSIAM data source schema for 'resource_id' and ensure the parsing regex for this field is designed to capture the entire string, possibly by using a non-greedy quantifier or ensuring the field's data type supports longer strings.

C. The problematic cloud provider's API is intermittently truncating 'resource_id' before sending it to XSIAM. Investigate the cloud provider's logging and API documentation.

D. A custom normalization rule is inadvertently truncating the 'resource_id' field for this cloud provider. Review custom normalization rules for conflicts.

E. The XSIAM content pack itself has a bug specific to this cloud provider's parsing. Report the issue to Palo Alto Networks support and look for a content pack update.