Avrdude not able to upload to leonardo with ubuntu 18.10

Hi all,
odd issue and I would like to know if I am the only one with this. I have been uploading sketches with arduino 1.8.6 on my linux box (ubuntu 16.xx,17.xx and 18.04) with no problem (uno, mega and leonardo).
Now since I upgraded to ubuntu 18.10 no joy for leonardo anymore! I am still able to upload to Uno and Mega though.
I did not change the arduino toolchain at all, only the rest was upgraded. I suspect a problem with the new CDC driver.
In any case this is the log:

avrdude: Version 6.3-20171130
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch

System wide configuration file is "/home/emmanuel/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino14/etc/avrdude.conf"
User configuration file is "/home/emmanuel/.avrduderc"
User configuration file does not exist or is not a regular file, skipping

Using Port : /dev/ttyACM1
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 = "CATERIN"; type = S
Software Version = 1.0; No Hardware Version given.
Programmer supports auto addr increment.
Programmer supports buffered memory access with buffersize=128 bytes.

Programmer supports the following devices:
Device code: 0x44

avrdude: devcode selected: 0x44
avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e9587 (probably m32u4)
avrdude: reading input file "/tmp/arduino_build_164818/RR-duino.ino.hex"
avrdude: writing flash (18572 bytes):

Writing | avrdude: butterfly_recv(): programmer is not responding
avrdude: error: programmer did not respond to command: write block
***failed;
***failed;

repeated a lot and then several:

avrdude: Error: butterfly programmer uses avr_write_page() but does not
provide a cmd() method.
*** page 127 (addresses 0x0000 - 0x007f) failed to write

with different page numbers

BTW I can still upload sketches to my leonardo on another linux box, but first I have to reflash the bootloader (that I can do on the problematic linux box via a tinyUSB !!)
Anyone could help pls?
TIA
Manu

No you are not the only one. I've had this problem since upgrading as well. I've had to rely on Windows for the uploads.
I hope this get's fixed soon.

sakdask:
No you are not the only one. I've had this problem since upgrading as well. I've had to rely on Windows for the uploads.
I hope this get's fixed soon.

OK I will try to see on Ubuntu forum if something comes up.

Did you manage to find a solution

Nope, nothing from the UBUNTU forum, will try the avrfreaks one maybe...

Sorry guys I got no answer from Ubuntu forums, the bug I opened on Launchpad did not get any attention either. Can we raise this issue to someone with longer arms ;-)?
Bye
Manu