Another iOS Sync Error

I'm posting separately because it seems to be a different error to the others posted here. Accordance for iOS 3.5, iOS 26, iPhone 16 Pro

‘Error initializing Accordance Sync: ProcessSyncTaskType’

I've tried deselecting sync options and it happens whether I have none, one, or some selected.

I tried resetting sync in Accordance 14.1.0 for MacOS26. That side is working fine.