On 32-bit builds of PHP, numbers that exceed the limits of a 32-bit integer (±2,000,000,000) are silently cast to a float. The organizer_id expects an integer. For my account, those values were all greater than that maximum number (11 digits) and silently failed. Allowing the organizer_id to be passed in as a string avoids the issue.
On 32-bit builds of PHP, numbers that exceed the limits of a 32-bit integer (±2,000,000,000) are silently cast to a
float. Theorganizer_idexpects an integer. For my account, those values were all greater than that maximum number (11 digits) and silently failed. Allowing theorganizer_idto be passed in as astringavoids the issue.