diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
index 88a6942e..1b1c421a 100644
--- a/.github/workflows/main.yml
+++ b/.github/workflows/main.yml
@@ -18,7 +18,7 @@ jobs:
   build-linux:
     strategy:
      matrix:
-       qtversion: [5.14.2, 6.8.2]
+       qtversion: [5.14.2, 6.8.*]
     runs-on: ubuntu-latest
     steps:
       # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
@@ -35,7 +35,7 @@ jobs:
         run: qmake porymap.pro
 
       - name: Compile
-        run: make
+        run: make -j8
 
   build-macos:
     strategy:
@@ -53,7 +53,8 @@ jobs:
       - name: Install Qt
         uses: jurplel/install-qt-action@v4
         with:
-          version: '6.8.2'
+          # 6.10 is the first Qt version (by release date) to support macOS 26
+          version: '6.10.*'
           modules: 'qtcharts'
           cache: 'true'
 
@@ -61,7 +62,7 @@ jobs:
         run: qmake -config release porymap.pro
 
       - name: Compile
-        run: make
+        run: make -j8
 
       - name: Create Disk Image
         if: startsWith(github.ref, 'refs/tags/')
diff --git a/src/lib/fex/lexer.cpp b/src/lib/fex/lexer.cpp
index e8545f2e..e6591570 100644
--- a/src/lib/fex/lexer.cpp
+++ b/src/lib/fex/lexer.cpp
@@ -164,7 +164,7 @@ namespace fex
         // Note: Using QFile instead of ifstream to handle encoding differences between platforms
         //       (specifically to handle accented characters on Windows)
         QFile file(path);
-        file.open(QIODevice::ReadOnly);
+        if (!file.open(QIODevice::ReadOnly)) return Lex();
 
         const QByteArray data = file.readAll();
 
diff --git a/src/log.cpp b/src/log.cpp
index 22da47cf..d2cde0a4 100644
--- a/src/log.cpp
+++ b/src/log.cpp
@@ -195,7 +195,7 @@ void logInit() {
         dir.mkpath(settingsPath);
     Log::path = dir.absoluteFilePath(QStringLiteral("porymap.log"));
     Log::file.setFileName(Log::path);
-    Log::file.open(QIODevice::WriteOnly | QIODevice::Append);
+    if (!Log::file.open(QIODevice::WriteOnly | QIODevice::Append)) return;
     Log::textStream.setDevice(&Log::file);
 
     QObject::connect(&Log::displayClearTimer, &QTimer::timeout, [=] {
diff --git a/src/mainwindow.cpp b/src/mainwindow.cpp
index 318601a8..637c4caf 100644
--- a/src/mainwindow.cpp
+++ b/src/mainwindow.cpp
@@ -751,9 +751,9 @@ void MainWindow::restoreWindowState() {
 }
 
 void MainWindow::setTheme(QString theme) {
-    QFile File(QString(":/themes/%1.qss").arg(theme));
-    File.open(QFile::ReadOnly);
-    QString stylesheet = QLatin1String(File.readAll());
+    QFile file(QString(":/themes/%1.qss").arg(theme));
+    if (!file.open(QFile::ReadOnly)) return;
+    QString stylesheet = QLatin1String(file.readAll());
 
     stylesheet.append(QString("QWidget { %1 } ").arg(Util::toStylesheetString(porymapConfig.applicationFont)));
     stylesheet.append(QString("MapTree { %1 } ").arg(Util::toStylesheetString(porymapConfig.mapListFont)));