Fix for align bone to cursor (missing normalize)

1 files changed, 3 insertions, 1 deletions

diff --git a/source/blender/editors/armature/armature_edit.c b/source/blender/editors/armature/armature_edit.c
index b7ab7fe064d..8bcee52baab 100644
--- a/source/blender/editors/armature/armature_edit.c
+++ b/source/blender/editors/armature/armature_edit.c
@@ -296,7 +296,9 @@ static int armature_calc_roll_exec(bContext *C, wmOperator *op)
 				float cursor_rel[3];
 				sub_v3_v3v3(cursor_rel, cursor_local, ebone->head);
 				if (axis_flip) negate_v3(cursor_rel);
-				ebone->roll = ED_rollBoneToVector(ebone, cursor_rel, axis_only);
+				if (normalize_v3(cursor_rel) != 0.0f) {
+					ebone->roll = ED_rollBoneToVector(ebone, cursor_rel, axis_only);
+				}
 			}
 		}
 	}