The omission of an accent over the a-a1 octave in bar 180 in GC (→GE) and FE (FE omitted two previous accents as well) results almost certainly from distraction caused by deletions and corrections in A – Chopin was forced to write the ultimate version of the 2nd half of bar 179 in the margin because there was not enough space over the stave.
Compare the passage in the sources »
category imprint: Differences between sources
issues: Errors in FE, Errors of GC
notation: Articulation, Accents, Hairpins