ExternalRestore - invalid request: cos id xxxx does not point to a valid cos

Hi,

Source: zimbra 6.0.7 + zextras 2.4.12
Destination zimbra 8.7 + zextras 2.12.1

Problem:

Im trying to do a externaRestore but all i get is - invalid request: cos id xxxx does not point to a valid cos
From the cos id i know which it is on the source server, but there doesnt seem to be an option to change it.

Tried with skip_coss TRUE, that didnt help either

Searched for this, but theres no info.

Help.

Thank you

Update:
Tried to import with an older zextras version 2.6.1(known working i got from colleague), issues is non existent.