On 2021-09-21 21:27, Tomi Ollila writes: > I'd be interested to know if changing max-lisp-eval-depth to a larger value > made difference. > > e.g (set max-lisp-eval-depth 1600) Thank you for the suggestion. I tried with 1600, and I get a different error (and the numbers are larger now). Debugger entered--Lisp error: (error "Variable binding depth exceeds max-specpdl-size") notmuch-show-insert-tree((nil ((nil ((nil ((nil ...))))))) 394) #f(compiled-function (tree) #)((nil ((nil ((nil ((nil ...)))))))) mapc(#f(compiled-function (tree) #) ((nil ((nil ((nil (...)))))))) notmuch-show-insert-thread(((nil ((nil ((nil (...))))))) 394) notmuch-show-insert-tree((nil ((nil ((nil ((nil ...))))))) 393) #f(compiled-function (tree) #)((nil ((nil ((nil ((nil ...)))))))) mapc(#f(compiled-function (tree) #) ((nil ((nil ((nil (...)))))))) notmuch-show-insert-thread(((nil ((nil ((nil (...))))))) 393) notmuch-show-insert-tree((nil ((nil ((nil ((nil ...))))))) 392) Best, Alan