PW4 5.10.1.3 Collections Manager not working

Hi,

I jailbroke my new PW4 (G0000PP) using this guideline:

https://www.mobileread.com/forums/sh...d.php?t=320564

So it's 5.10.1.3. Then I tried to get Calibre + Kindle Collections working based on this guideline:

https://www.mobileread.com/forums/sh...d.php?t=244202

I cannot get Collection Manager running in my Kindle:

https://www.mobileread.com/forums/sh...d.php?t=186305

so I cannot sync collections from Calibre to Kindle. Does the Collection Manager work on 5.10.1.3? Thanks for any help!