Being this is something that involves how Wayfarer works internally, they most likely won’t share any additional information as to what may have caused these events. Tintino did note that it’s being investigated, a fix will be pushed out soon, and we will be notified once the issue is resolved.
You may want to check out the thread on the issue from this spring, and see what info Niantic did provide us with then, as it most likely will be the same this time around: