Windows .exe FTB launcher typos in code?

[Brisos]

When extra debugging is turned on and you look at the temp path that installmods uses it seems to have typos in the path (froward and back slashes - see bolded line and red slashes).

Could this explain why my launcher always gets stuck on the last line shown here (in green)? I posted in another thread and my pastebin shows no problem, but here it is: http://pastebin.com/EJBwe3Sq

debug: initializeMods: pack dir...
Direwolf20_1_6_4
Modpack is up to date.
dirs mk'd
debug: installMods: install path: C:\Users\seb\Desktop\FTB
debug: installMods: temp path: C:\Users\seb\AppData\Roaming/ftblauncher/
debug: installMods: source: C:\Users\seb\AppData\Roaming\ftblauncher\ModPacks\Direwolf20_1_6_4\minecraft
debug: installMods: packDir: Direwolf20_1_6_4
debug: retaining modpack file: C:\Users\seb\AppData\Roaming\ftblauncher\ModPacks\Direwolf20_1_6_4\Direwolf20.zip

 

[One_Man-Army19]

I get the same error idk how to fix any ideas on how to?