Currently running T4. Just updated cpp. As of today I can no longer access Synaptic Package Manager. After typing my root authentication password the application simply shuts down automatically. Tried rebooting as no settings were modified. No luck. Maybe another user is experiencing the same problem?!!
Thanks for your consideration. Surprisingly, T4 is proving to be quite a stable alpha running on my old HP laptop.

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Downloaded and installed newly released Tanglu 4. Unfortunately the issue with Synaptic Package Manager has not been resolved. I am also running Debian Stretch to be released this coming Saturday June 17 and Synaptic works fine. So I assume that this may not be an upstream issue. Comments welcome and assistance appreciated.

EDIT: Sorry but this issue is a show stopper.