Did you get error 697?
Any stacktrace raised?
Msg 697
This error occurs when Adaptive Server tries to access an object in cache but arrives at an invalid page. The page number is correct on disk, but it does not match the page number of the page in memory.
Error 697 results in a stack trace and breaks your connection to Adaptive Server.
Since the problem occurs in cache, it is a soft error. Shut down and restart Adaptive Server to clear the memory corruption.