In FE the last L.H. chord is provided with a superfluous 
to b
. On the other hand, the accidental to d1 is missing, which suggests a mistake, particularly in the context of the next two bars. This is how it was assessed in GE, in which the to b was removed, while a flat to d1 was added, lowering it to d1. The mistake was also corrected in EE by adding the correct accidental yet without removing the harmless to b.
Compare the passage in the sources »
category imprint: Differences between sources
issues: EE revisions, Errors in FE, GE revisions
notation: Pitch