Kobo Touch: Processing Content freeze

[akit0]

Hi I bought a new Kobo touch at the start of this month. I have used Calibre since the beginning and it worked fine. However started with the new 8.31 update, my e-books aren't transferring over and my Kobo stops working at 72%. I've returned my e-read and got a new one about an hour ago and the same thing is happening. Can someone please help me? I tried using the debug program in Calibre and this is what came out.

I'm currently running a windows 7

Version: 0.8.31
USB devices on system:
[u'usb\\root_hub&vid1022&pid7807&rev0011',
u'usb\\root_hub&vid1022&pid7807&rev0011',
u'usb\\root_hub20&vid1022&pid7808&rev0011',
u'usb\\root_hub20&vid1022&pid7808&rev0011',
u'usb\\vid_03f0&pid_311d&rev_0001',
u'usb\\vid_0461&pid_4de7&rev_0005',
u'usb\\vid_0461&pid_4de7&rev_0005&mi_00',
u'usb\\vid_2237&pid_4163&rev_0326']
Drives detected:
(0) G:\ ~ \\?\STORAGE#VOLUME#_??_USBSTOR#DISK&VEN_KOBO&PROD_ EREADER&REV_0326#KG3180500437A&0#{53F56307-B6BF-11D0-94F2-00A0C91EFB8B}#{53F5630D-B6BF-11D0-94F2-00A0C91EFB8B}
Available plugins: ADAM ALEX ALURATEK_COLOR ANDROID ARCHOS7O AVANT AZBOOKA BAMBOOK
BLACKBERRY BOEYE_BDX BOEYE_BEX BOOQ BOOX COBY COOL_ER CYBOOK DBOOK E52
E71X EB511 EB600 EBK52 ECLICTO EDGE EEEREADER ELONEX ESLICK EX124G
FOLDER_DEVICE_FOR_CONFIG GEMEI GER2 HANLINV3 HANLINV5 ILIAD INVESBOOK
IPAPYRUS IREXDR1000 IREXDR800 IRIVER_STORY ITALICA ITUNES JETBOOK
JETBOOK_MINI KINDLE KINDLE2 KINDLE_DX KINDLE_FIRE KOBO LIBREAIR
LUMIREAD MENTOR MIBUK MOOVYBOOK N516 N770 N810 NEWSMY NEXTBOOK NOOK
NOOK_COLOR NUUT2 ODYSSEY ORIZON PALMPRE PDNOVEL PDNOVEL_KOBO PICO
PLAYBOOK POCKETBOOK301 POCKETBOOK360 POCKETBOOK360P POCKETBOOK602
POCKETBOOK701 PRS505 PRST1 README S60 SHINEBOOK SNE SOVOS SPECTRA
STASH SUNSTECH_EB700 SWEEX TECLAST_K3 THEBOOK TREKSTOR USER_DEFINED
VELOCITYMICRO WEBOS WEXLER

Looking for devices...
u'usb\\vid_2237&pid_4163&rev_0326'
Detected possible device KOBO

Devices possibly connected: Kobo Reader Device Interface,
Trying to open Kobo Reader Device Interface ... OK
Main memory: 'G:\\'
Total space: (1469030400, 0, 0)

[kovidgoyal]

You likely have a book that the Kobo cannot handle. I cant think of anything in 0.8.31 that could possibly cause your Kobo to freeze, but feel free to downgrade, previous releases of calibre are available here: http://sourceforge.net/projects/calibre/files/