DLV-490041 error : Unknown content block '%s', or you do not have the appropriate rights to access its definition.

Hello everyone,

I am facing an issue with this : DLV-490041 error : Unknown content block '%s', or you do not have the appropriate rights to access its definition. I am using personalization block in the subject of my delivery and the delivery fails because of that.

I try to recreate the same delivery with the same personalization and this time it works but I don't know why this occurs, anyone already face this kind of issue ?

All I did was to duplicate the delivery and change the scheduling to one hour later.

Feel free to share your thoughts on that.

Kind regards and thank you in advance.