From cb11c6b3eabc9f35fbcb9f6dcc864d1f83589726 Mon Sep 17 00:00:00 2001
From: Philip Allgaier <mail@spacegaier.de>
Date: Tue, 14 Sep 2021 23:20:09 +0200
Subject: [PATCH] Check for `null` action nodes before rendering (#10017)

---
 src/components/trace/hat-script-graph.ts | 22 +++++++++++++---------
 1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/src/components/trace/hat-script-graph.ts b/src/components/trace/hat-script-graph.ts
index d0e96a4540..2c416d8725 100644
--- a/src/components/trace/hat-script-graph.ts
+++ b/src/components/trace/hat-script-graph.ts
@@ -173,21 +173,25 @@ export class HatScriptGraph extends LitElement {
                     ?track=${track_this}
                     ?active=${this.selected === branch_path}
                   ></hat-graph-node>
-                  ${ensureArray(branch.sequence).map((action, j) =>
-                    this.render_action_node(
-                      action,
-                      `${branch_path}/sequence/${j}`
-                    )
-                  )}
+                  ${branch.sequence !== null
+                    ? ensureArray(branch.sequence).map((action, j) =>
+                        this.render_action_node(
+                          action,
+                          `${branch_path}/sequence/${j}`
+                        )
+                      )
+                    : ""}
                 </div>
               `;
             })
           : ""}
         <div ?track=${track_default}>
           <hat-graph-spacer ?track=${track_default}></hat-graph-spacer>
-          ${ensureArray(config.default)?.map((action, i) =>
-            this.render_action_node(action, `${path}/default/${i}`)
-          )}
+          ${config.default !== null
+            ? ensureArray(config.default)?.map((action, i) =>
+                this.render_action_node(action, `${path}/default/${i}`)
+              )
+            : ""}
         </div>
       </hat-graph-branch>
     `;