diff --git a/Marlin/src/module/planner.cpp b/Marlin/src/module/planner.cpp
index f5507da7a5..99df08205d 100644
--- a/Marlin/src/module/planner.cpp
+++ b/Marlin/src/module/planner.cpp
@@ -2415,9 +2415,10 @@ bool Planner::_populate_block(
        *               Check the appropriate K value for Standard or Fixed-Time Motion.
        */
       if (esteps && dm.e) {
-        const bool ftm_active = TERN0(FTM_HAS_LIN_ADVANCE, ftMotion.cfg.active);
+        const bool ftm_active = TERN0(FTM_HAS_LIN_ADVANCE, ftMotion.cfg.active),
+                   ftm_la_active = TERN0(FTM_HAS_LIN_ADVANCE, ftm_active && ftMotion.cfg.linearAdvEna);
         const float advK = ftm_active
-          ? TERN0(FTM_HAS_LIN_ADVANCE, ftMotion.cfg.linearAdvK)
+          ? (ftm_la_active ? TERN0(FTM_HAS_LIN_ADVANCE, ftMotion.cfg.linearAdvK) : 0)
           : TERN0(HAS_ROUGH_LIN_ADVANCE, extruder_advance_K[E_INDEX_N(extruder)]);
         if (advK) {
           float e_D_ratio = (target_float.e - position_float.e) /
@@ -2437,7 +2438,7 @@ bool Planner::_populate_block(
             const uint32_t max_accel_steps_per_s2 = (MAX_E_JERK(extruder) / (advK * e_D_ratio)) * steps_per_mm;
             if (accel > max_accel_steps_per_s2) {
               accel = max_accel_steps_per_s2;
-              if (TERN0(LA_DEBUG, DEBUGGING(INFO))) SERIAL_ECHOLNPGM("Acceleration limited.");
+              if (TERN0(LA_DEBUG, DEBUGGING(INFO))) SERIAL_ECHOLNPGM("Acceleration limited to max_accel_steps_per_s2 (", max_accel_steps_per_s2, ")");
             }
           }
         }
diff --git a/Marlin/src/module/stepper.cpp b/Marlin/src/module/stepper.cpp
index 20415265b1..6be58e7bb5 100644
--- a/Marlin/src/module/stepper.cpp
+++ b/Marlin/src/module/stepper.cpp
@@ -2438,6 +2438,7 @@ hal_timer_t Stepper::block_phase_isr() {
         acceleration_time += interval;
         deceleration_time = 0; // Reset since we're doing acceleration first.
 
+        // Apply Nonlinear Extrusion, if enabled
         calc_nonlinear_e(acc_step_rate << oversampling_factor);
 
         #if HAS_ROUGH_LIN_ADVANCE
@@ -2502,6 +2503,7 @@ hal_timer_t Stepper::block_phase_isr() {
         interval = calc_multistep_timer_interval(step_rate << oversampling_factor);
         deceleration_time += interval;
 
+        // Apply Nonlinear Extrusion, if enabled
         calc_nonlinear_e(step_rate << oversampling_factor);
 
         #if HAS_ROUGH_LIN_ADVANCE
@@ -2555,6 +2557,7 @@ hal_timer_t Stepper::block_phase_isr() {
           TERN_(SMOOTH_LIN_ADVANCE, curr_step_rate = current_block->nominal_rate;)
           deceleration_time = ticks_nominal / 2;
 
+          // Apply Nonlinear Extrusion, if enabled
           calc_nonlinear_e(current_block->nominal_rate << oversampling_factor);
 
           #if HAS_ROUGH_LIN_ADVANCE
@@ -2826,6 +2829,7 @@ hal_timer_t Stepper::block_phase_isr() {
       // Initialize ac/deceleration time as if half the time passed.
       acceleration_time = deceleration_time = interval / 2;
 
+      // Apply Nonlinear Extrusion, if enabled
       calc_nonlinear_e(current_block->initial_rate << oversampling_factor);
 
       #if ENABLED(LIN_ADVANCE)