Some customers reported packet-loss from DTAG to our network. We've tried to move the DTAG traffic between the transit sessions but it did not solve the problem. As we currently only see the loss from the DTAG network, we think it's a DTAG internal issue. We'll investigate further if the issue persists until tomorrow.
Update (17.10.2020, 08:15 CEST): Looks like the loss disappeared since exactly 00:00 CEST.