diff --git a/Marlin/src/pins/mega/pins_MEGATRONICS_3.h b/Marlin/src/pins/mega/pins_MEGATRONICS_3.h
index 23fbe7636c..a33b2ecfc5 100644
--- a/Marlin/src/pins/mega/pins_MEGATRONICS_3.h
+++ b/Marlin/src/pins/mega/pins_MEGATRONICS_3.h
@@ -48,12 +48,12 @@
 //
 // Limit Switches
 //
-#define X_MIN_PIN          37
-#define X_MAX_PIN          40
-#define Y_MIN_PIN          41
-#define Y_MAX_PIN          38
-#define Z_MIN_PIN          18
-#define Z_MAX_PIN          19
+#define X_MIN_PIN          37   // No INT
+#define X_MAX_PIN          40   // No INT
+#define Y_MIN_PIN          41   // No INT
+#define Y_MAX_PIN          38   // No INT
+#define Z_MIN_PIN          18   // No INT
+#define Z_MAX_PIN          19   // No INT
 
 //
 // Z Probe (when not Z_MIN_PIN)
diff --git a/buildroot/share/tests/megaatmega2560-tests b/buildroot/share/tests/megaatmega2560-tests
index 411a9bb364..60e25987d0 100755
--- a/buildroot/share/tests/megaatmega2560-tests
+++ b/buildroot/share/tests/megaatmega2560-tests
@@ -173,8 +173,8 @@ opt_set SERVO_DELAY "{ 300, 300, 300 }"
 opt_enable COREYX USE_XMAX_PLUG MIXING_EXTRUDER GRADIENT_MIX \
            BABYSTEPPING BABYSTEP_DISPLAY_TOTAL FILAMENT_LCD_DISPLAY \
            REPRAP_DISCOUNT_SMART_CONTROLLER MENU_ADDAUTOSTART SDSUPPORT SDCARD_SORT_ALPHA \
-           ENDSTOP_INTERRUPTS_FEATURE ENDSTOP_NOISE_THRESHOLD FAN_SOFT_PWM \
-           AUTO_BED_LEVELING_LINEAR DEBUG_LEVELING_FEATURE FILAMENT_WIDTH_SENSOR \
+           ENDSTOP_NOISE_THRESHOLD FAN_SOFT_PWM \
+           FIX_MOUNTED_PROBE AUTO_BED_LEVELING_LINEAR DEBUG_LEVELING_FEATURE FILAMENT_WIDTH_SENSOR \
            SHOW_TEMP_ADC_VALUES HOME_Y_BEFORE_X EMERGENCY_PARSER \
            SD_ABORT_ON_ENDSTOP_HIT HOST_ACTION_COMMANDS HOST_PROMPT_SUPPORT ADVANCED_OK M114_DETAIL \
            VOLUMETRIC_DEFAULT_ON NO_WORKSPACE_OFFSETS ACTION_ON_KILL EXTRA_FAN_SPEED FWRETRACT