patch 8.1.0856: when scrolling a window the cursorline is not always updated commit https://github.com/vim/vim/commit/bbb5f8d4c2cbc5f48556008875f57cbe7fc4ac6c Author: Bram Moolenaar <Bram@vim.org> Date: Thu Jan 31 13:22:32 2019 +0100 patch 8.1.0856: when scrolling a window the cursorline is not always updated Problem: When scrolling a window other than the current one the cursorline highlighting is not always updated. (Jason Franklin) Solution: Call redraw_for_cursorline() after scrolling. Only set w_last_cursorline when drawing the cursor line. Reset the lines to be redrawn also when redrawing the whole window.

--- a/src/move.c
+++ b/src/move.c
@@ -19,7 +19,6 @@
 
 #include "vim.h"
 
-static void redraw_for_cursorline(win_T *wp);
 static int scrolljump_value(void);
 static int check_top_offset(void);
 static void curs_rows(win_T *wp);
@@ -128,7 +127,7 @@ reset_cursorline(void)
  * Redraw when w_cline_row changes and 'relativenumber' or 'cursorline' is
  * set.
  */
-    static void
+    void
 redraw_for_cursorline(win_T *wp)
 {
     if ((wp->w_p_rnu
@@ -158,7 +157,6 @@ redraw_for_cursorline(win_T *wp)
 	    }
 	    else
 		redraw_win_later(wp, SOME_VALID);
-	    wp->w_last_cursorline = wp->w_cursor.lnum;
 	}
 #endif
     }