As a previous reply stated, you need to change your download folder to somewhere else and see what happens, if indeed this is happening on ALL torrents you start. Something is odd with your system, according to your own log file. The following lines are relevant:
31:42.712> AsyncFileSys::CreateDir C:\Users\yourusername\my_tor_dir\The_File_I_Am_Trying_To_Download.2017.S02E13.HDTV.x264-SVA 6 us = 1
31:42.737> AsyncFileSys::CreateDir CB e=2 us = 1
This suggests that C:\Users\yourusername\my_tor_dir does not exist, according to the error code 2, which is ERROR_PATH_NOT_FOUND.
From the Windows API docs at https://docs.microsoft.com/en-us/windows/desktop/api/fileapi/nf-fileapi-createdirectorya
ERROR_PATH_NOT_FOUND - One or more intermediate directories do not exist; this function will only create the final directory in the path.
If you want to solve this, the first step is to change your download location to somewhere else, perhaps a folder on your desktop. There is probably a permission problem or something else weird with that particular folder you are using. Regardless, there's no Tixati bug here as far as the submitted information shows.