Toplink problem Oracle 10g

[Frank Ertl]

Hi all, this week I ran into a strange problem with toplink:
Our application normally works fine, but this week we tested with more data in the database and higher load on the IAS and some references in toplink turned out to be null where they shouldn't be and in fact haven't been before.
Does anyone know about this problem? Shutting down Oracle'S cluster service did the trick, but I don't think this is how it should work.

Thanks in advance,

Frank