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DIYer here. I noticed that (only) one of the truss plates popped off where the rafters meet at the peak of the roof. Thus, a single set of rafters and the supporting beam are misligned and no longer connected.
– whats the probable reason this happened?
– If this is the only instance of the issue, is the solution simple enough? (remove old plate, re-align, hammer in new plates on both sides?

thanks.