I have 8 Wellies and 6 Cuckoo Marans due the 12th. I candled them yesterday and they seemed to be Ok. Hard to see in super dark shells really. Two were questionable, but I am waiting for at least another week to deem them duds. So if that helps you answer your question, yes wait and see. If in a week I see no development or it appears clear compared to the rest I will pull those eggs.
I also have 2 mutt eggs from us and 7 SLW due on the 16th. It was kinda early to candle them, but I did. Much easier to see with lighter egg shells. So far they appear to all be good to go! Their air cells were a lot easier to make out and I saw veins also.