diff --git a/buildroot/tests/mega2560 b/buildroot/tests/mega2560
index 0932388969..db50c84a10 100755
--- a/buildroot/tests/mega2560
+++ b/buildroot/tests/mega2560
@@ -16,7 +16,7 @@ set -e
 # Test a probeless build of AUTO_BED_LEVELING_UBL, with lots of extruders
 #
 use_example_configs AnimationExample
-opt_set MOTHERBOARD BOARD_AZTEEG_X3_PRO LCD_LANGUAGE fr SAVED_POSITIONS 4 \
+opt_set MOTHERBOARD BOARD_AZTEEG_X3_PRO LCD_LANGUAGE fr SAVED_POSITIONS 4 DEFAULT_EJERK 10 \
         EXTRUDERS 5 TEMP_SENSOR_1 1 TEMP_SENSOR_2 5 TEMP_SENSOR_3 20 TEMP_SENSOR_4 1000 TEMP_SENSOR_BED 1
 opt_enable AUTO_BED_LEVELING_UBL RESTORE_LEVELING_AFTER_G28 DEBUG_LEVELING_FEATURE G26_MESH_VALIDATION ENABLE_LEVELING_FADE_HEIGHT SKEW_CORRECTION \
            REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER LIGHTWEIGHT_UI STATUS_MESSAGE_SCROLLING SHOW_CUSTOM_BOOTSCREEN BOOT_MARLIN_LOGO_SMALL \
@@ -31,7 +31,7 @@ exec_test $1 $2 "Azteeg X3 Pro | EXTRUDERS 5 | RRDFGSC | UBL | LIN_ADVANCE ..."
 # Add a Sled Z Probe, use UBL Cartesian moves, use Japanese language
 #
 use_example_configs AnimationExample
-opt_set MOTHERBOARD BOARD_AZTEEG_X3_PRO LCD_LANGUAGE jp_kana \
+opt_set MOTHERBOARD BOARD_AZTEEG_X3_PRO LCD_LANGUAGE jp_kana DEFAULT_EJERK 10 \
         EXTRUDERS 5 TEMP_SENSOR_1 1 TEMP_SENSOR_2 5 TEMP_SENSOR_3 20 TEMP_SENSOR_4 1000 TEMP_SENSOR_BED 1
 opt_enable REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER LIGHTWEIGHT_UI SHOW_CUSTOM_BOOTSCREEN BOOT_MARLIN_LOGO_SMALL \
            LCD_SET_PROGRESS_MANUALLY PRINT_PROGRESS_SHOW_DECIMALS SHOW_REMAINING_TIME STATUS_MESSAGE_SCROLLING SCROLL_LONG_FILENAMES \
@@ -73,6 +73,7 @@ opt_set MOTHERBOARD BOARD_AZTEEG_X3_PRO MIXING_STEPPERS 5 LCD_LANGUAGE ru \
 opt_enable MIXING_EXTRUDER GRADIENT_MIX GRADIENT_VTOOL CR10_STOCKDISPLAY \
            USE_CONTROLLER_FAN CONTROLLER_FAN_EDITABLE CONTROLLER_FAN_IGNORE_Z \
            FILAMENT_RUNOUT_SENSOR ADVANCED_PAUSE_FEATURE NOZZLE_PARK_FEATURE
+opt_disable DISABLE_INACTIVE_EXTRUDER
 exec_test $1 $2 "Azteeg X3 | Mixing Extruder (x5) | Gradient Mix | Greek" "$3"
 
 #
diff --git a/buildroot/tests/rambo b/buildroot/tests/rambo
index 27c277865b..0555a068e2 100755
--- a/buildroot/tests/rambo
+++ b/buildroot/tests/rambo
@@ -122,6 +122,7 @@ opt_enable COREYX USE_XMAX_PLUG MIXING_EXTRUDER GRADIENT_MIX \
            SD_ABORT_ON_ENDSTOP_HIT HOST_ACTION_COMMANDS HOST_PROMPT_SUPPORT ADVANCED_OK M114_DETAIL \
            VOLUMETRIC_DEFAULT_ON NO_WORKSPACE_OFFSETS EXTRA_FAN_SPEED FWRETRACT \
            USE_CONTROLLER_FAN CONTROLLER_FAN_EDITABLE CONTROLLER_FAN_USE_Z_ONLY
+opt_disable DISABLE_INACTIVE_EXTRUDER
 exec_test $1 $2 "Rambo | CoreXY, Gradient Mix | Endstop Int. | Home Y > X | FW Retract ..." "$3"
 
 # clean up
diff --git a/buildroot/tests/teensy35 b/buildroot/tests/teensy35
index 3352c05525..b80f0ca19d 100755
--- a/buildroot/tests/teensy35
+++ b/buildroot/tests/teensy35
@@ -67,6 +67,7 @@ exec_test $1 $2 "PARKING_EXTRUDER with LCD" "$3"
 restore_configs
 opt_set MOTHERBOARD BOARD_TEENSY35_36 MIXING_STEPPERS 2
 opt_enable MIXING_EXTRUDER DIRECT_MIXING_IN_G1 GRADIENT_MIX GRADIENT_VTOOL REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER
+opt_disable DISABLE_INACTIVE_EXTRUDER
 exec_test $1 $2 "Mixing Extruder" "$3"
 
 #
diff --git a/buildroot/tests/teensy41 b/buildroot/tests/teensy41
index 55e7e6eae2..1c94ace8ff 100755
--- a/buildroot/tests/teensy41
+++ b/buildroot/tests/teensy41
@@ -70,6 +70,7 @@ exec_test $1 $2 "Ethernet, EEPROM, Magnetic Parking Extruder, No LCD" "$3"
 restore_configs
 opt_set MOTHERBOARD BOARD_TEENSY41 MIXING_STEPPERS 2
 opt_enable MIXING_EXTRUDER DIRECT_MIXING_IN_G1 GRADIENT_MIX GRADIENT_VTOOL
+opt_disable DISABLE_INACTIVE_EXTRUDER
 exec_test $1 $2 "Mixing Extruder" "$3"
 
 #