diff --git a/source/blender/blenloader/intern/versioning_300.c b/source/blender/blenloader/intern/versioning_300.c
index 68df560a389..7a29afb4048 100644
--- a/source/blender/blenloader/intern/versioning_300.c
+++ b/source/blender/blenloader/intern/versioning_300.c
@@ -3243,5 +3243,33 @@ void blo_do_versions_300(FileData *fd, Library *UNUSED(lib), Main *bmain)
    */
   {
     /* Keep this block, even when empty. */
+
+    {
+      /* In the Dope Sheet, for every mode other than Timeline, open the Properties panel. */
+      LISTBASE_FOREACH (bScreen *, screen, &bmain->screens) {
+        LISTBASE_FOREACH (ScrArea *, area, &screen->areabase) {
+          LISTBASE_FOREACH (SpaceLink *, sl, &area->spacedata) {
+            if (sl->spacetype != SPACE_ACTION) {
+              continue;
+            }
+
+            /* Skip the timeline, it shouldn't get its Properties panel opened. */
+            SpaceAction *saction = (SpaceAction *)sl;
+            if (saction->mode == SACTCONT_TIMELINE) {
+              continue;
+            }
+
+            const bool is_first_space = sl == area->spacedata.first;
+            ListBase *regionbase = is_first_space ? &area->regionbase : &sl->regionbase;
+            ARegion *region = BKE_region_find_in_listbase_by_type(regionbase, RGN_TYPE_UI);
+            if (region == NULL) {
+              continue;
+            }
+
+            region->flag &= ~RGN_FLAG_HIDDEN;
+          }
+        }
+      }
+    }
   }
 }
diff --git a/source/blender/makesrna/intern/rna_space.c b/source/blender/makesrna/intern/rna_space.c
index 20bf13145fd..745c7137cb2 100644
--- a/source/blender/makesrna/intern/rna_space.c
+++ b/source/blender/makesrna/intern/rna_space.c
@@ -2293,17 +2293,6 @@ static void rna_SpaceDopeSheetEditor_mode_update(bContext *C, PointerRNA *ptr)
       }
       ED_region_visibility_change_update(C, area, channels_region);
     }
-    /* For every mode other than the timeline, open the properties panel by default. */
-    ARegion *ui_region = BKE_area_find_region_type(area, RGN_TYPE_UI);
-    if (ui_region) {
-      if (saction->mode == SACTCONT_TIMELINE) {
-        ui_region->flag |= RGN_FLAG_HIDDEN;
-      }
-      else {
-        ui_region->flag &= ~RGN_FLAG_HIDDEN;
-      }
-      ED_region_visibility_change_update(C, area, ui_region);
-    }
   }
 
   /* recalculate extents of channel list */