Hi there, I'm having an issue where my invoice IDs are not being enforced to be unique. This is occuring in the PayPal Sandbox, I'm hoping this isn't just something that is fixed in production. I've already set the option to block multiple invoice IDs: http://cl.ly/image/1g1j3k312M1d Here are two example payments: http://cl.ly/image/1s3V3j28441X http://cl.ly/image/2j332F0h2I2P It doesn't seem to matter how often I send a payment with the same invoice ID, I never get the coveted "duplicate invoice ID supplied" message. Has anyone run into this? Any help would be appreciated! Thanks, Ryan
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