diff --git a/src/Launcher.cs b/src/Launcher.cs
index 09880c3..64edba5 100644
--- a/src/Launcher.cs
+++ b/src/Launcher.cs
@@ -167,8 +167,9 @@ static class Launcher
 
                     // We need to cache this here since we are using our RSA modulus as auth seed.
                     var modulusOffset = memory.Data.FindPattern(Patterns.Common.SignatureModulus);
+                    var legacyCertMode = clientVersion is (1, >= 14, <= 3, _) or (3, 4, <= 1, _) or (9, _, _, _) or (10, <= 1, _, _) and not (10, 1, 5, _);
 
-                    if (clientVersion is (1, >= 14, <= 3, _) or (3, 4, <= 1, _) or (9, _, _, _) or (10, <= 1, _, _) and not (10, 1, 5, _))
+                    if (legacyCertMode)
                     {
                         Task.WaitAll(new[]
                         {
@@ -201,14 +202,14 @@ static class Launcher
 #if CUSTOM_FILES
                     antiCrash = true;
 #else
-                    antiCrash = commandLineResult.HasOption(LaunchOptions.UseStaticAuthSeed) ||
+                    antiCrash = legacyCertMode || commandLineResult.HasOption(LaunchOptions.UseStaticAuthSeed) ||
                                 commandLineResult.GetValueForOption(LaunchOptions.DevMode) && LaunchOptions.IsDevModeAllowed;
 #endif
 
                     WaitForUnpack(ref processInfo, memory, ref mbi, gameAppData, antiCrash);
 
 #if x64
-                    if (clientVersion is (1, >= 14, <= 3, _) or (3, 4, <= 1, _) or (9, _, _, _) or (10, <= 1, _, _) and not (10, 1, 5, _))
+                    if (legacyCertMode)
                     {
                         Task.WaitAll(new[]
                         {