I get this too lately. It happens to me when I have a scheme I haven't added a file to. So I just go back gthrough git commits to find the files I haven't added. But it is still really annoying.

Swapping over to URL Scheme instead of Universal Links makes no difference.

For me on the 17th-19th of April all the Event Dates are empty. I can also confirm there are many other days over the last few months with empty dates. This is affecting ChartMogul which has been reporting rubbish data now for over a week. Every entry without a date seems to be ignored and that causes ChartMogul to report that user as churned.