diff --git a/Firmware/Marlin_main.cpp b/Firmware/Marlin_main.cpp
index e4e1e0b2b..aef3813b2 100755
--- a/Firmware/Marlin_main.cpp
+++ b/Firmware/Marlin_main.cpp
@@ -2072,9 +2072,10 @@ inline void gcode_M900() {
         SERIAL_ECHOLNPGM("K out of allowed range!");
 #else
     if (newK == 0)
+    {
         extruder_advance_K = 0;
-    else if (newK == -1)
         la10c_reset();
+    }
     else
     {
         newK = la10c_value(newK);
@@ -4864,11 +4865,6 @@ if(eSoundMode!=e_SOUND_MODE_SILENT)
 	case_G80:
 	{
 		mesh_bed_leveling_flag = true;
-#ifndef LA_NOCOMPAT
-        // When printing via USB there's no clear boundary between prints. Abuse MBL to indicate
-        // the beginning of a new print, allowing a new autodetected setting just after G80.
-        la10c_reset();
-#endif
 #ifndef PINDA_THERMISTOR
         static bool run = false; // thermistor-less PINDA temperature compensation is running
 #endif // ndef PINDA_THERMISTOR
diff --git a/Firmware/ultralcd.cpp b/Firmware/ultralcd.cpp
index 469a9ce1a..fb6ede87e 100755
--- a/Firmware/ultralcd.cpp
+++ b/Firmware/ultralcd.cpp
@@ -39,6 +39,10 @@
 #include "tmc2130.h"
 #endif //TMC2130
 
+#ifndef LA_NOCOMPAT
+#include "la10compat.h"
+#endif
+
 #include "sound.h"
 
 #include "mmu.h"
@@ -7352,6 +7356,10 @@ void lcd_print_stop()
     current_position[Z_AXIS] += 10; //lift Z.
     plan_buffer_line_curposXYZE(manual_feedrate[Z_AXIS] / 60, active_extruder);
 
+#ifndef LA_NOCOMPAT
+    la10c_reset(); //reset LA1.0 conversion lock
+#endif
+
     if (axis_known_position[X_AXIS] && axis_known_position[Y_AXIS]) //if axis are homed, move to parked position.
     {
         current_position[X_AXIS] = X_CANCEL_POS;