From 168816d796efc7a9307fa1756f7a1bb70b3a8286 Mon Sep 17 00:00:00 2001
From: Octol1ttle <l1ttleofficial@outlook.com>
Date: Thu, 22 Jan 2026 22:34:44 +0500
Subject: [PATCH] ModrinthCheckUpdate: don't send a request that is doomed to
 fail

Signed-off-by: Octol1ttle <l1ttleofficial@outlook.com>
(cherry picked from commit 29afecdbde47351aef6251e69e3263148c599ff6)
---
 launcher/modplatform/modrinth/ModrinthCheckUpdate.cpp | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/launcher/modplatform/modrinth/ModrinthCheckUpdate.cpp b/launcher/modplatform/modrinth/ModrinthCheckUpdate.cpp
index 6683a0ed5..77062a752 100644
--- a/launcher/modplatform/modrinth/ModrinthCheckUpdate.cpp
+++ b/launcher/modplatform/modrinth/ModrinthCheckUpdate.cpp
@@ -90,13 +90,19 @@ void ModrinthCheckUpdate::getUpdateModsForLoader(std::optional<ModPlatform::ModL
     QStringList hashes;
     if (forceModLoaderCheck && loader.has_value()) {
         for (auto hash : m_mappings.keys()) {
-            if (m_mappings[hash]->metadata()->loaders & loader.value()) {
+            if (m_mappings.value(hash)->metadata()->loaders & loader.value()) {
                 hashes.append(hash);
             }
         }
     } else {
         hashes = m_mappings.keys();
     }
+
+    if (hashes.isEmpty()) {
+        checkNextLoader();
+        return;
+    }
+
     auto job = api.latestVersions(hashes, m_hashType, m_gameVersions, loader, response);
 
     connect(job.get(), &Task::succeeded, this, [this, response, loader] { checkVersionsResponse(response, loader); });