Bug #7495
Updated by beat about 5 years ago
https://www.joomlapolis.com/forum/255-developer-members-support/240719-7495-authorize-net-gateway-not-working-sorta?start=6#311342
https://www.joomlapolis.com/forum/277-cb-paid-subscriptions-support/240717-7495-authorize-net-intermittent-pull?start=6#311343
Possibly remotely related (if Authorize.net has a bug in checking double payments too):
https://www.joomlapolis.com/forum/277-cb-paid-subscriptions-support/240682-triple-charge-no-record-of-subscription?start=12#311344
https://www.joomlapolis.com/forum/255-developer-members-support/240316-cbsubs-gateway-notifications-and-errors?start=18#311345