# 2156 Restricted Transactions Used in UPDATE and DELETE Statements Not Acquiring Proper Write Lock

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I've just updated to DBISAM "4.22 Build 3" and I'm still getting the DBISAM "index error 8965" reported from a test site. I upgraded because I had this error a while ago, and upgraded and see it was updated again.

My app is doing multi-threaded read and writes of a database. My understanding is that this is an error that was fixed, but I don't know if I'm triggering something more, or if it is a problem in my code. Of course I find it hard to repeat it here!

Essentially what I have is "two" threads. One runs and looks for work to do in the database, and the "other" is created by RemObjects calls (and hence there may be more than one). Actually, on checking I see there is another session and table set on the main form, which may be relevant.