diff --git a/Utilities/Config.cpp b/Utilities/Config.cpp
index 282759310d..dd9bbc732f 100644
--- a/Utilities/Config.cpp
+++ b/Utilities/Config.cpp
@@ -202,10 +202,12 @@ void cfg::encode(YAML::Emitter& out, const cfg::_base& rhs)
 		out << YAML::EndMap;
 		return;
 	}
-	default: LOG_ERROR(GENERAL, "Attempting to cfg encode an unimplemented type.");
+	default:
+	{
+		out << rhs.to_string();
+		return;
+	}
 	}
-
-	out << rhs.to_string();
 }
 
 void cfg::decode(const YAML::Node& data, cfg::_base& rhs)
diff --git a/rpcs3/Emu/Cell/MFC.cpp b/rpcs3/Emu/Cell/MFC.cpp
index ba8de91e05..91b30ad0cc 100644
--- a/rpcs3/Emu/Cell/MFC.cpp
+++ b/rpcs3/Emu/Cell/MFC.cpp
@@ -50,6 +50,13 @@ void fmt_class_string<MFC>::format(std::string& out, u64 arg)
 		case MFC_BARRIER_CMD: return "BARRIER";
 		case MFC_EIEIO_CMD: return "EIEIO";
 		case MFC_SYNC_CMD: return "SYNC";
+
+		case MFC_BARRIER_MASK:
+		case MFC_FENCE_MASK:
+		case MFC_LIST_MASK:
+		case MFC_START_MASK:
+		case MFC_RESULT_MASK:
+			break;
 		}
 
 		return unknown;
diff --git a/rpcs3/Emu/PSP2/ARMv7DisAsm.cpp b/rpcs3/Emu/PSP2/ARMv7DisAsm.cpp
index b881d8b36b..f37beda633 100644
--- a/rpcs3/Emu/PSP2/ARMv7DisAsm.cpp
+++ b/rpcs3/Emu/PSP2/ARMv7DisAsm.cpp
@@ -258,6 +258,9 @@ void ARMv7DisAsm::Write(const std::string& value)
 	case CPUDisAsm_InterpreterMode:
 		last_opcode += fmt::format(": %s", str);
 		break;
+	case CPUDisAsm_CompilerElfMode:
+		write("ERROR: Trying to load unimplemented CPU DisAsm mode, CompilerElfMode.");
+		break;
 	}
 }
 
diff --git a/rpcs3/basic_mouse_handler.cpp b/rpcs3/basic_mouse_handler.cpp
index 721f40a4f8..cb17e01e61 100644
--- a/rpcs3/basic_mouse_handler.cpp
+++ b/rpcs3/basic_mouse_handler.cpp
@@ -55,6 +55,8 @@ bool basic_mouse_handler::eventFilter(QObject* target, QEvent* ev)
 		case QEvent::Wheel:
 			MouseScroll(static_cast<QWheelEvent*>(ev));
 			break;
+		default:
+			return false;
 		}
 	}
 	return false;