I noticed that the RSS plugin was not picking up a new item. After some investigation I found that my item generated the following error:
Data too long for column 'event' at row 7
When I changed the column type of ‘value’ in ‘RssFeedPlugin_item_data’ table to ‘LONGTEXT’ instead of ‘TEXT’ it seemed to have fixed the problem.
Fyi, this was the feed generating the problem.
Maybe this column should be LONGTEXT by default?