Hi,
I use ASA on multisite with domain mapping activated, and I cannot display anything on a sub-site, its just blank.
No error in the logs, the ids, aws key and so on are correct, and all the asins DO exist on Amazon.
The same products are perfectly displayed on the main site.
Looking at the source code, I noticed an incorrect url that might be the reason :
{var data={action:'asa_async_load',asin:'B005AH1LRE',tpl:'pdt_small',params:'[]',nonce:'44a954a2fa'};if(typeof ajaxurl=='undefined'){var ajaxurl='http://example.com//wp-admin/admin-ajax.php'}
1- note the double /
2- example.com is the main domain, not the mapped sub-domain, neither the sub-domain
This seems to be linked to a recent update.