diff --git a/Marlin/Marlin_main.cpp b/Marlin/Marlin_main.cpp
index 233e2fa42..9f2ba7be1 100644
--- a/Marlin/Marlin_main.cpp
+++ b/Marlin/Marlin_main.cpp
@@ -1708,11 +1708,12 @@ void process_commands()
     case 907: // M907 Set digital trimpot motor current using axis codes.
     {
       #if DIGIPOTSS_PIN > -1
-        for(int i=0;i<=NUM_AXIS;i++) if(code_seen(axis_codes[i])) digipot_current(i,code_value());
+        for(int i=0;i<NUM_AXIS;i++) if(code_seen(axis_codes[i])) digipot_current(i,code_value());
         if(code_seen('B')) digipot_current(4,code_value());
         if(code_seen('S')) for(int i=0;i<=4;i++) digipot_current(i,code_value());
       #endif
     }
+    break;
     case 908: // M908 Control digital trimpot directly.
     {
       #if DIGIPOTSS_PIN > -1
@@ -1727,7 +1728,7 @@ void process_commands()
     {
       #if X_MS1_PIN > -1
         if(code_seen('S')) for(int i=0;i<=4;i++) microstep_mode(i,code_value()); 
-        for(int i=0;i<=NUM_AXIS;i++) if(code_seen(axis_codes[i])) microstep_mode(i,(uint8_t)code_value());
+        for(int i=0;i<NUM_AXIS;i++) if(code_seen(axis_codes[i])) microstep_mode(i,(uint8_t)code_value());
         if(code_seen('B')) microstep_mode(4,code_value());
         microstep_readings();
       #endif
@@ -1739,11 +1740,11 @@ void process_commands()
       if(code_seen('S')) switch((int)code_value())
       {
         case 1:
-          for(int i=0;i<=NUM_AXIS;i++) if(code_seen(axis_codes[i])) microstep_ms(i,code_value(),-1);
+          for(int i=0;i<NUM_AXIS;i++) if(code_seen(axis_codes[i])) microstep_ms(i,code_value(),-1);
           if(code_seen('B')) microstep_ms(4,code_value(),-1);
           break;
         case 2:
-          for(int i=0;i<=NUM_AXIS;i++) if(code_seen(axis_codes[i])) microstep_ms(i,-1,code_value());
+          for(int i=0;i<NUM_AXIS;i++) if(code_seen(axis_codes[i])) microstep_ms(i,-1,code_value());
           if(code_seen('B')) microstep_ms(4,-1,code_value());
           break;
       }
diff --git a/Marlin/planner.cpp b/Marlin/planner.cpp
index e45c9d7ff..854fd19ee 100644
--- a/Marlin/planner.cpp
+++ b/Marlin/planner.cpp
@@ -582,8 +582,16 @@ void plan_buffer_line(const float &x, const float &y, const float &z, const floa
   block->active_extruder = extruder;
 
   //enable active axes
+  #ifdef COREXY
+  if((block->steps_x != 0) || (block->steps_y != 0))
+  {
+    enable_x();
+    enable_y();
+  }
+  #else
   if(block->steps_x != 0) enable_x();
   if(block->steps_y != 0) enable_y();
+  #endif
 #ifndef Z_LATE_ENABLE
   if(block->steps_z != 0) enable_z();
 #endif