On 2016-01-13 18:30, Katsumi Yamaoka writes: > On Wed, 13 Jan 2016 18:10:04 +0900, Katsumi Yamaoka wrote: >> Ok, I'll try it with the other back end and different servers. > > After having done some tests, I got to guess that it might arise > with only nnimap. So, I'd like to ask nnimap people to reproduce > and fix it: > > Thank you for your tests. After a little more debugging here, it seems that what happens is that the following configuration is important for this to break: (setq gnus-refer-article-method '(current (nnir "nnimap:inria") (nnir "nnimap:local"))) The `gnus-request-update-mark' function works well for nnimap (as there is no corresponding function, so the initial mark is returned), but it seems to be problematic with nnir. I cannot edebug it further because `nnir-request-update-mark' is a deffoo, and I don’t know how to debug those. Alan -- OpenPGP Key ID : 040D0A3B4ED2E5C7 Athmospheric CO₂ (Updated January 12, 2016, Mauna Loa Obs.): 401.82 ppm