[mg10]

Hi All
I retake this topic from Calibre forum because maybe here thare are more possibilities of answer.
With my Scribe I'm using this option in Calibre (styles --> additional css), when converting from epub to azw3, in order to get desired margins:

html {
margin-right: -130px;
margin-left: -130px;
break-inside: avoid !important;
}

After updating a PW, I could see that this option caused an error when opening the book, or trying to change fonts: the one I indicated at the beginning of this thread:
"An error occurred. If you purchased this item from Amazon, delete the item and download it from the Cloud"

In order to avoid this behavior with my Scribe, I stay on an old firmware version because don't know if this error is going to be repeated in the Scribe.

My question is: can someone who has 5.16.6 release or latest in a Scribe, confirm if this happens as well? Someone who uses Calibre and transfers the books through it. I'd like to avoid upgrading if I can no longer use the margins I like, because I won't be able to downgrade it.

Thanks in advance