When you combine this with the makeBackgroundContext below, does this solution merges the contexts correctly, for the background and main context?

Thread 1: "-[NSURL longLongValue]: unrecognized selector sent to instance 0x303bd38e0" why would it try to cast it to longlongValue?!

is this going to part of iOS 18.2 release?

This is probably the worst persistentModelID not found message EVER!!!