Securebridge SFTP Client Access Violation

Securebridge SFTP Client Access Violation

Hi,
We have been getting Access Violations when using the SFTP client component in a MFT server.
Sow what happens is the server has 4 queue threads and files get processed by the destinations they have, so when a file has a SFTP relay destination it creates a new SFTP client object with the SSH, SFTP and keystore and if it uses key auth it imports the key into the memory key store. 
it seems when there are a lot of out going connections to the same host a AV will pop up and it never even logs into the remote host.
I just recently updated to the SB release from this past April and I noticed it has a bug fix for AVs in the sftp client.  Now prior to me doing this once this happened the server actually had to be restarted to get rid of the AV, now after I did the April update it seems to recover and I don't have to restart the entire server to get the AVs to stop.

Is there anything I should be looking at to prevent these SFTP client AVs from happening?  each queue thread gets a brand new SFTP client object each time it sends.

Thank you.