Subject Re: page type N lock denied(216) or lock conversion denied(215)
>Did you migrate via backup/restore? It's a requirement if you don't want
>to see this issue in FB 2.5.3.

No, I have missed Vlad comment about it in
We will b/r databases as soon as possible, thanks.

Also, is it possible to just delete all data from offending tables? If all pages with records are cleared, shouldn`t it also get rid of record fragments?