Oh yeah I didn't copy it properly because it was quite long. Heres the entire issue: Error fetching subscriptions. Expected this response but could not parse it: HTTP 200, text: {"subscriptions":[{"type":"query","subscriptionId":"CDF6D9BD-77E5-41C6-BC18-3AD1A49E1A7D","query":{"recordType":"Message","filters":[{"fieldName":"conversationID","fieldValue":{"type":"stringType","value":"C8356727-83A0-4981-9C62-48B891B376EB"},"type":"EQUALS"}]},"firesOn":["CREATE"],"firesOnce":false,"zone":{"zoneName":"_zoneWide","canonicalName":"_zoneWide","ownerRecordName":"_df807ec5aa88995e336922b90835b528"}},{"type":"query","subscriptionId":"75FD4B36-F48F-46BD-962B-BA0BA16231C5","query":{"recordType":"Message","filters":[{"fieldName":"conversationID","fieldValue":{"type":"stringType","value":"F46D6D9A-6721-4474-92B9-84CE6D327CDB"},"type":"EQUALS"}]},"firesOn":["CREATE"],"firesOnce":false,"zone":{"zoneName":"_zoneWide","canonicalName":"_zoneWide","ownerRecordName":"_df807ec5aa88995e336922b90835b528"}},{"type":"query","subscriptionId":"127FC165-7A43-46F0-BB4A-EDB251AD5DAB","query":{"recordType":"Message","filters":[{"fieldName":"conversationID","fieldValue":{"type":"stringType","value":"EFD26729-47F3-46C4-9BA2-2AC24F0122D3"},"type":"EQUALS"}]},"firesOn":["DELETE","CREATE"],"firesOnce":false,"zone":{"zoneName":"_zoneWide","canonicalName":"_zoneWide","ownerRecordName":"_df807ec5aa88995e336922b90835b528"}},{"type":"query","subscriptionId":"2D2D391B-E9BE-434C-BCD7-F7D323D28600","query":{"recordType":"Message","filters":[{"fieldName":"conversationID","fieldValue":{"type":"stringType","value":"C26242A7-3C18-4586-B82F-3C1F0957FEB3"},"type":"EQUALS"}]},"firesOn":["DELETE","CREATE"],"firesOnce":false,"zone":{"zoneName":"_zoneWide","canonicalName":"_zoneWide","ownerRecordName":"_df807ec5aa88995e336922b90835b528"}}]} Please try again later. I tried finding the response value but it am not sure where to find that.

Update - Adjusted predicate to"conversationID = %@", removed the predicate completely, forced single subscription per request, the updated result is similar: Error fetching subscriptions. Expected this response but could not parse it: HTTP 200, text: {"subscriptions":[{"type":"query","subscriptionId":"D100BAE0-D9C1-4A48-A3D1-6A6D2EE3733B","query":{"recordType":"Message","filters":[]},"firesOn":["CREATE"],"firesOnce":false,"zone":{"zoneName":"_zoneWide","canonicalName":"_zoneWide","ownerRecordName":"_df807ec5aa88995e336922b90835b528"}}]} Please try again later.

CloudKit was undergoing an update. Seems like everything is sorted now :)