Ok, I installed the x86 version (also 4.7.5) and that works. But I dont know why. Someone?

Hi there,
since the latest update (4.7.5) the Button for renaming Episodes does not work anymore for me.
I tried to rename the Westword S01E09. Fetching the data via tvdb works, but renaming does not.
Also the error file is empty.

https://s14.postimg.org/6d0ql12b1/screen.png

Edit:
I am using ...