Just to clarify, the plugin isn’t wiping your settings. What’s happening is that something is deleting/truncating part of the plugin’s options data in the database. When this happens, PHP can’t “open” the data, so SEO Ultimate starts over from scratch to avoid crashing your site.
My guess is something in your site’s configuration doesn’t like the large amount of data that SEO Ultimate needs to store (since SEO Ultimate has so many features, it has to store the data for lots of options). Here are some ways you can cut down on the amount of data that the plugin stores:
- Try clearing the 404 Monitor log and disabling 404 logging
- Try deleting the stopwords list in the Slug Optimizer module
I’m working on a way to restructure SEO Ultimate to bypass this issue, but the 2 workarounds I listed should help for now. If you continue to run into this problem, let me know.