Program upload issue: Maybe it isn't a butterfly/AVR109 but a AVR910 device?

Development Tools IDE 1.x
1

Mac OS X
Arduino IDE

I was able to upload the program to the Arduino Leonardo board before, but I don't know what have been changed to the board after I used visual micro to set breakpoint. And the program cannot be uploaded any more. Below is the message when uploading. Thanks for help.

Arduino: 1.6.3 (Mac OS X), Board: "Arduino Leonardo"

avrdude: Version 6.0.1, compiled on Mar 30 2015 at 12:15:29
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch

System wide configuration file is "/Applications/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf"
User configuration file is "/Users/xinpengyu/.avrduderc"
User configuration file does not exist or is not a regular file, skipping

Using Port : /dev/cu.usbmodem1421
Using Programmer : avr109
Overriding Baud Rate : 57600
AVR Part : ATmega32U4
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PA0
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :

Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack

eeprom 65 20 4 0 no 1024 4 0 9000 9000 0x00 0x00
flash 65 6 128 0 yes 32768 128 256 4500 4500 0x00 0x00
lfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
efuse 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
lock 0 0 0 0 no 1 0 0 9000 9000 0x00 0x00
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00

Programmer Type : butterfly
Description : Atmel AppNote AVR109 Boot Loader

Connecting to programmer: .
Found programmer: Id = "VMDPV_1"; type = E
Software Version = V.M; Hardware Version = D.P
avrdude: error: buffered memory access not supported. Maybe it isn't
a butterfly/AVR109 but a AVR910 device?
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.

2

So happy that I have fixed this problem, but I ready don't know how I fixed it. I tried changing different usb cable, tried switch different programer several times, then it works now even for old usb cable and any programer. It is really strange and seems only occurred on Leonardo.