Hi
Up to you. Just keep in mind that if the problem is solved when you disable sh404SEF, this absolutely doesn't mean the problem is in sh404SEF. Specifically with SobiPro, make sure you use the Developer console of your browser to check for 404 errors happening in redirects or javascript in general, when sh404SEF is enabled and you have such problem.
If you see this, it's a problem in Sobi, but we can help in identifying. We reported such issue about a month ago, and Radek had fixed it. So current stable release should be good, but you'll never know.
There are also multiple settings in sh404SEF which apply.
One way or the other, please use the
helpdesk for this. This forum is not for support.
Rgds