diff --git a/GUI/mainwindow.cpp b/GUI/mainwindow.cpp
index 275cfba..3bc8289 100644
--- a/GUI/mainwindow.cpp
+++ b/GUI/mainwindow.cpp
@@ -33,6 +33,7 @@ extern const char* SELECT_PROCESS_INFO;
 extern const char* FROM_COMPUTER;
 extern const char* PROCESSES;
 extern const char* CODE_INFODUMP;
+extern const char* FAILED_TO_CREATE_CONFIG_FILE;
 extern const char* HOOK_SEARCH_UNSTABLE_WARNING;
 extern const char* SEARCH_CJK;
 extern const char* SEARCH_PATTERN;
@@ -107,7 +108,7 @@ namespace
 		void (*AddSentence)(int64_t, const wchar_t*) = [](int64_t number, const wchar_t* sentence)
 		{
 			// pointer from Host::GetThread may not stay valid unless on main thread
-			QMetaObject::invokeMethod(This, [number, sentence = std::wstring(sentence)]{ if (TextThread* thread = Host::GetThread(number)) thread->AddSentence(sentence); });
+			QMetaObject::invokeMethod(This, [number, sentence = std::wstring(sentence)] { if (TextThread* thread = Host::GetThread(number)) thread->AddSentence(sentence); });
 		};
 		DWORD (*GetSelectedProcessId)() = [] { return selectedProcessId.load(); };
 
@@ -198,7 +199,8 @@ namespace
 		{
 			std::wstring configFile = std::wstring(processName.value()).replace(last, std::wstring::npos, GAME_CONFIG_FILE);
 			if (!std::filesystem::exists(configFile)) QTextFile(S(configFile), QFile::WriteOnly).write("see https://github.com/Artikash/Textractor/wiki/Game-configuration-file");
-			_wspawnlp(_P_DETACH, L"notepad", L"notepad", configFile.c_str(), NULL);
+			if (std::filesystem::exists(configFile)) _wspawnlp(_P_DETACH, L"notepad", L"notepad", configFile.c_str(), NULL);
+			else QMessageBox::critical(This, GAME_CONFIG, QString(FAILED_TO_CREATE_CONFIG_FILE).arg(S(configFile)));
 		}
 	}
 
diff --git a/include/qtcommon.h b/include/qtcommon.h
index a4fa3cb..f80b133 100644
--- a/include/qtcommon.h
+++ b/include/qtcommon.h
@@ -31,4 +31,4 @@ inline QString S(const std::string& s) { return QString::fromStdString(s); }
 inline QString S(const std::wstring& s) { return QString::fromStdWString(s); }
 // TODO: allow paired surrogates
 inline void sanitize(QString& s) { s.chop(std::distance(std::remove_if(s.begin(), s.end(), [](QChar ch) { return ch.isSurrogate(); }), s.end())); }
-inline QString sanitize(QString&& s) { QString result; for (auto ch : s) if (!ch.isSurrogate()) result.push_back(ch); return result; }
+inline QString sanitize(QString&& s) { sanitize(s); return s; }
diff --git a/text.cpp b/text.cpp
index a42a5d1..ea08b55 100644
--- a/text.cpp
+++ b/text.cpp
@@ -64,6 +64,7 @@ const char* INVALID_EXTENSION = u8"%1 is an invalid extension";
 const char* CONFIRM_EXTENSION_OVERWRITE = u8"Another version of this extension already exists, do you want to delete and overwrite it?";
 const char* EXTENSION_WRITE_ERROR = u8"Failed to save extension";
 const char* USE_JP_LOCALE = u8"Emulate japanese locale?";
+const char* FAILED_TO_CREATE_CONFIG_FILE = u8"Failed to create config file \"%1\"";
 const char* HOOK_SEARCH_UNSTABLE_WARNING = u8"Searching for hooks is unstable! Be prepared for your game to crash!";
 const char* SEARCH_CJK = u8"Search for Chinese/Japanese/Korean";
 const char* SEARCH_PATTERN = u8"Search pattern (hex byte array)";