Hi all, I currently use ESS 18.10.2 with Emacs 27.0.50 without any problems. This morning, I tried ESS from melpa (Version 20190521.2129) and did not found the "ess-eval-chunk*" functions when editing a R/LaTeX .Rnw file. Have I forgotten to install and/or initialize some extra (e.g. polymode?) packages? Regards, Sven