Multiple VPN connections per PPtP Client

We have been experiencing an issue for many weeks where a single windows PPtP login will create multiple dynamic interfaces even though it seems that only one is actually active. We are currently running 6.34.2 but have rebooted, tried updating firmware, and a few other things. It doesn’t seem to affect functionality of the tunnel but I couldn’t find a fix for this. This occurs with several different profiles and pools. You should be able to see from the attachments that many of the connected but non active connections have been running for weeks rather than the primary one which is generally less than a day. Any ideas?

Update: Upgrading to firmware 6.35.4 seemed to resolve the issue.