There is no 
restoring b in bar 408 before the last semiquaver in the L.H. in FE; the same applies to b1 in bar 409. These patent oversights, repeated almost certainly after [A], were corrected in GE (in both bars) and partially in EE (only in bar 409).
Compare the passage in the sources »
category imprint: Interpretations within context; Differences between sources
issues: EE revisions, Errors in FE, Omissions to cancel alteration, GE revisions
notation: Pitch