1 files changed, 3 insertions, 3 deletions
diff --git a/source/blender/blenkernel/intern/gpencil_geom.cc b/source/blender/blenkernel/intern/gpencil_geom.cc
index 9bf59df968e..9f231c8f5f2 100644
--- a/source/blender/blenkernel/intern/gpencil_geom.cc
+++ b/source/blender/blenkernel/intern/gpencil_geom.cc
@@ -3548,7 +3548,7 @@ void BKE_gpencil_stroke_join(bGPDstroke *gps_a,
 
 void BKE_gpencil_stroke_start_set(bGPdata *gpd, bGPDstroke *gps, int start_idx)
 {
-  if ((start_idx < 1) || (start_idx >= gps->totpoints)) {
+  if ((start_idx < 1) || (start_idx >= gps->totpoints) || (gps->totpoints < 2)) {
     return;
   }
 
@@ -3558,8 +3558,8 @@ void BKE_gpencil_stroke_start_set(bGPdata *gpd, bGPDstroke *gps, int start_idx)
   }
 
   bGPDstroke *gps_b = BKE_gpencil_stroke_duplicate(gps, true, false);
-  BKE_gpencil_stroke_trim_points(gps_b, 0, start_idx - 0);
-  BKE_gpencil_stroke_trim_points(gps, start_idx, gps->totpoints - 1);
+  BKE_gpencil_stroke_trim_points(gps_b, 0, start_idx);
+  BKE_gpencil_stroke_trim_points(gps, start_idx + 1, gps->totpoints - 1);
 
   /* Join both strokes. */
   BKE_gpencil_stroke_join(gps, gps_b, false, false, false, false);