Could the incident of Commutair 4933 in Presque Island be of relevance to this incident?
https://en.m.wikipedia.org/wiki/CommutAir_Flight_4933
...and that the ILS localizer was out of tolerance by about 200 ft (61 m) to the right, a condition that had been noticed during six previous CommutAir flights, including by the accident first officer, but had not been properly reported to the FAA