Just installed the latest version of the plugin on a WP 3.5.1 development site yesterday. This morning I noticed one of the product images missing. I looked at the cache info that the plugin provides and it showed that the artists had been synced within the last 30 min. But the offers and products had not been synced in over 4 hours (basically since the initial installation). So, I ran the offers sync manually and it completed successfully and that "fixed" the missing image. But a few hours later I had the same issue.
I also noticed that when a message appears that the Offers are being updated persists on the site (unless I force a manual sync).
Do all 3 syncs run every 30 minutes?
Any ideas on what I can do to troubleshoot this issue?