@DTS Engineer Thanks a lot Ziqiao Chen, Yeah I have used transformable which seems to have resolved the problem. Hopefully this gets fixed because for every custom type (even if it can be represented with a simple struct) this transformation needs to be done which does add a bit of overhead and not as nice / elegant / easy as just using Codable. Thanks again for your help. If you have time there is one other issue regarding CloudKit FB22670054 (https://developer.apple.com/forums/thread/824836)