From 4aa1c2485d948297031535238b9a9f5545237687 Mon Sep 17 00:00:00 2001
From: Scott Idem <stidem@gmail.com>
Date: Wed, 4 Mar 2026 18:34:19 -0500
Subject: [PATCH] fix(launcher): guard hash_prefix_length select on
 native_device existence

native_device can be undefined during initial load (before device config
is fetched). The select bind:value was doing a hard property access that
threw a TypeError crash when native_device was null/undefined. Wrapped
in {#if $ae_loc.native_device} to defer rendering until it's available.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
---
 .../launcher_cfg_sync_timers.svelte           | 24 +++++++++++--------
 1 file changed, 14 insertions(+), 10 deletions(-)

diff --git a/src/routes/events/[event_id]/(launcher)/cfg_components/launcher_cfg_sync_timers.svelte b/src/routes/events/[event_id]/(launcher)/cfg_components/launcher_cfg_sync_timers.svelte
index 581936ea..5e5314d9 100644
--- a/src/routes/events/[event_id]/(launcher)/cfg_components/launcher_cfg_sync_timers.svelte
+++ b/src/routes/events/[event_id]/(launcher)/cfg_components/launcher_cfg_sync_timers.svelte
@@ -131,16 +131,20 @@
                     >
                     <div class="flex items-center justify-between px-1">
                         <span class="text-[9px]">Hash Prefix Length</span>
-                        <select
-                            bind:value={
-                                $ae_loc.native_device.hash_prefix_length
-                            }
-                            class="select select-sm h-6 py-0 text-[10px] w-16 preset-tonal-surface"
-                        >
-                            <option value={1}>1 char</option>
-                            <option value={2}>2 chars</option>
-                            <option value={3}>3 chars</option>
-                        </select>
+                        {#if $ae_loc.native_device}
+                            <select
+                                bind:value={
+                                    $ae_loc.native_device.hash_prefix_length
+                                }
+                                class="select select-sm h-6 py-0 text-[10px] w-16 preset-tonal-surface"
+                            >
+                                <option value={1}>1 char</option>
+                                <option value={2}>2 chars</option>
+                                <option value={3}>3 chars</option>
+                            </select>
+                        {:else}
+                            <span class="text-[9px] opacity-50 italic">loading…</span>
+                        {/if}
                     </div>
                     <p class="text-[8px] opacity-40 italic mt-1">
                         * Prefix change requires a full app reload to take