diff --git a/keyboards/spiderisland/split78/config.h b/keyboards/spiderisland/split78/config.h
index a7ec160faf..e15e5d193d 100644
--- a/keyboards/spiderisland/split78/config.h
+++ b/keyboards/spiderisland/split78/config.h
@@ -33,3 +33,5 @@ along with this program.  If not, see .
 #define BACKLIGHT_PIN D4
 #define BACKLIGHT_LEVELS 3
 #define BACKLIGHT_BREATHING
+
+#define DEBOUNCE 50
diff --git a/keyboards/spiderisland/split78/matrix.c b/keyboards/spiderisland/split78/matrix.c
index b5c7028fdf..71e154e5b7 100644
--- a/keyboards/spiderisland/split78/matrix.c
+++ b/keyboards/spiderisland/split78/matrix.c
@@ -105,9 +105,17 @@ void matrix_init_custom(void) {
 
 }
 
+static i2c_status_t mcp23018_status = I2C_STATUS_SUCCESS;
+
 bool matrix_scan_custom(matrix_row_t current_matrix[]) {
     bool matrix_has_changed = false;
 
+#if defined(RIGHT_HALF)
+	if (mcp23018_status != I2C_STATUS_SUCCESS) {
+	    mcp23018_status = mcp23018_init();
+	}
+#endif
+
     for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
         // Store last value of row prior to reading
         matrix_row_t last_row_value = current_matrix[row];
@@ -124,7 +132,9 @@ bool matrix_scan_custom(matrix_row_t current_matrix[]) {
 		// as 0x75 would be no keys pressed
 		uint8_t data = 0x7F;
 		// Receive the columns from right half
-		i2c_receive(TWI_ADDR_WRITE, &data, 1, I2C_TIMEOUT);
+		if (mcp23018_status == I2C_STATUS_SUCCESS) {
+			mcp23018_status = i2c_receive(TWI_ADDR_WRITE, &data, 1, I2C_TIMEOUT);
+		}
 #endif
 
         cols |= ((~(PINA | 0x80)) & 0x7F);
@@ -146,7 +156,9 @@ void matrix_set_row_status(uint8_t row) {
     //Set the remote row on port A
     txdata[0] = (GPIOA);
     txdata[1] = ( 0xFF & ~(1<|