I run a multisite with 10 sites, all the same theme, different content, same MySQL DB. On 9 Sites, Yarpp is acting normally, while on 1 site, I get this issue:
"Consider Titles" and "Consider Bodies" are currently disabled.
I did all the Table ALTERing, but it didn't help, because the tables already are in MyISAM mode. Can you help to get it running on the last of the 10 sites?