Any new info about solar flares hitting the Moon added by the LADEE mission?
You'd probably be most interested in the results of the Lunar Dust EXperiment (LDEX).  A 2015 paper states


  LDEX data show no evidence for an electrostaticallylofted
  dust component at densities greater than a few
  per m3


I am assuming the solar flare stuff didn't pan out, otherwise it would be mentioned in the various LDEX summary papers.  In addition, the NASA DREAM group site doesn't seem to have anything relevant LADEE results, and they're the ones that brought the subject up in the first place.